What is the cheapest airline that flies from Portland to United States?

Frontier, Southwest, and Alaska Airlines are the most popular carriers operating from Portland to United States

Which airline has the best punctuality record on Portland to the United States flights?

According to our data, Sun Country Air have had the least number of delays on this route over the last 12 months; with about 2% of their flights experiencing any sort of delay.

How many flights depart from Portland to United States on average per week?

As of December 2025, 811 flights take off from Portland and land in United States each week. The most common flight departure day for this route is Thu, with 19% of weekly flights taking off on this day.

How many flights depart from Portland to United States on average per day?

As of December 2025, there are 115 flights per day flying from Portland to United States. The most common time of day flights depart is 7:00AM, with 56% of flights taking off at noon.

How often are flights from Portland to the United States delayed?

Historically, on average around 12% of flights between Portland and United States have experienced a delay on any given week. The average delay length over the past 12 months has been 123 minutes.

What airlines fly to United States?

Alaska Airlines, Frontier and Delta are the top three most popular airlines that fly to United States from Portland according to our data. Alaska Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to United States. Keep in mind that there are 10 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

What is the most punctual flight time for Portland to the United States flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

When did momondo last update prices for flights from Portland Airport to United States?

Prices for flights from Portland Airport to United States are updated daily.

How many operators does momondo search for flights from Portland Airport to United States?

As of December 2025, there are 11 operators available to choose from for flights from Portland Airport to United States.

How old do you have to be to fly from Portland Airport to United States?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to United States.

What documentation or ID do you need to fly to United States?

The necessary travel and health documents for your United States trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$58 Cheap Flights from Portland to the United States in 2025/26

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One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

11:59 am - 1:08 pm

PDX

LAX

25h 09m1 stop

6:00 pm - 8:27 pm

LAX

PDX

2h 27mnonstop

$123Frontier

Fri, Jan 16 - Fri, Jan 23

11:29 am - 1:57 pm

PDX

LAX

2h 28mnonstop

6:00 pm - 8:27 pm

LAX

PDX

2h 27mnonstop

$124Frontier

Sun, Jan 18 - Mon, Jan 26

5:50 pm - 8:10 pm

PDX

ONT

2h 20mnonstop

6:00 am - 12:38 pm

ONT

PDX

6h 38m1 stop

$162Alaska Airlines

Wed, Jan 21 - Mon, Jan 26

5:15 pm - 10:51 pm

PDX

ONT

5h 36m1 stop

3:30 pm - 8:59 pm

ONT

PDX

5h 29m1 stop

$167Delta

Tue, Jan 13 - Sun, Jan 18

9:38 pm - 11:59 pm

PDX

ONT

2h 21mnonstop

5:59 pm - 8:26 pm

ONT

PDX

2h 27mnonstop

$171Alaska Airlines

Sat, Jan 3 - Sat, Jan 10

7:10 am - 1:56 pm

PDX

ONT

6h 46m1 stop

5:07 pm - 8:33 am

ONT

PDX

15h 26m2 stops

$173Delta

Sat, Jan 10 - Sun, Jan 11

6:00 am - 11:53 am

PDX

DFW

3h 53mnonstop

7:55 pm - 10:11 pm

DFW

PDX

4h 16mnonstop

$198American Airlines

Tue, Jan 13 - Tue, Jan 20

6:00 am - 6:39 pm

PDX

MCO

9h 39m1 stop

12:01 pm - 8:24 pm

MCO

PDX

11h 23m1 stop

$209American Airlines

Fri, Jan 9 - Fri, Jan 16

11:05 pm - 7:15 am

PDX

EWR

5h 10mnonstop

6:29 pm - 9:49 pm

EWR

PDX

6h 20mnonstop

$277United Airlines

Fri, Jan 9 - Mon, Jan 12

11:05 pm - 7:15 am

PDX

EWR

5h 10mnonstop

5:30 am - 12:18 pm

EWR

PDX

9h 48m1 stop

$287United Airlines

Fri, Jan 9 - Sun, Jan 11

Southwest flights from Portland to United States

Our best Southwest deals on Portland to United States flight tickets

Southwest

Jan 10

PDX6:50 amPortland

3h 50m

1 stop

LAX10:40 amLos Angeles

Jan 13

LAX7:25 amLos Angeles

6h 10m

1 stop

PDX1:35 pmPortland

$159

Find similar

Southwest

Jan 21

PDX7:25 amPortland

6h 25m

2 stops

ONT1:50 pmOntario

Jan 24

ONT5:30 amOntario

7h 55m

2 stops

PDX1:25 pmPortland

$161

Find similar

Southwest

Feb 4

PDX6:20 amPortland

8h 25m

1 stop

ONT2:45 pmOntario

Feb 8

ONT8:30 amOntario

5h 10m

1 stop

PDX1:40 pmPortland

$169

Find similar

Frontier flights from Portland to United States

Our best Frontier deals on Portland to United States flight tickets

Frontier

Jan 16

PDX11:59 amPortland

25h 09m

1 stop

LAX1:08 pmLos Angeles

Jan 23

LAX6:00 pmLos Angeles

2h 27m

PDX8:27 pmPortland

$123

Find similar

Frontier

Jan 18

PDX11:29 amPortland

2h 28m

LAX1:57 pmLos Angeles

Jan 26

LAX6:00 pmLos Angeles

2h 27m

PDX8:27 pmPortland

$124

Find similar

Frontier

Jan 15

PDX10:17 amPortland

7h 02m

1 stop

LAX5:19 pmLos Angeles

Jan 18

LAX2:52 pmLos Angeles

2h 32m

PDX5:24 pmPortland

$125

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Portland to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

Fri 1/16

11:59 am-1:08 pm

1 stop25h 09m

Los Angeles

Fri 1/23

6:00 pm-8:27 pm

Nonstop2h 27m

$123

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

Sun 1/18

11:29 am-1:57 pm

Nonstop2h 28m

Los Angeles

Mon 1/26

6:00 pm-8:27 pm

Nonstop2h 27m

$124

PortlandOntario

PDX - ONT

PDXONT

Portland

Wed 1/21

5:50 pm-8:10 pm

Nonstop2h 20m

Ontario

Mon 1/26

6:00 am-12:38 pm

1 stop6h 38m

$162

PortlandOntario

PDX - ONT

PDXONT

Portland

Tue 1/13

5:15 pm-10:51 pm

1 stop5h 36m

Ontario

Sun 1/18

3:30 pm-8:59 pm

1 stop5h 29m

$167

PortlandOntario

PDX - ONT

PDXONT

Portland

Sat 1/3

9:38 pm-11:59 pm

Nonstop2h 21m

Ontario

Sat 1/10

5:59 pm-8:26 pm

Nonstop2h 27m

$171

PortlandOntario

PDX - ONT

PDXONT

Portland

Sat 1/10

7:10 am-1:56 pm

1 stop6h 46m

Ontario

Sun 1/11

5:07 pm-8:33 am

2 stops15h 26m

$173

PortlandDallas

PDX - DFW

PDXDFW

Portland

Tue 1/13

6:00 am-11:53 am

Nonstop3h 53m

Dallas/Fort Worth

Tue 1/20

7:55 pm-10:11 pm

Nonstop4h 16m

$198

PortlandOrlando

PDX - MCO

PDXMCO

Portland

Fri 1/9

6:00 am-6:39 pm

1 stop9h 39m

Orlando

Fri 1/16

12:01 pm-8:24 pm

1 stop11h 23m

$209

PortlandNewark

PDX - EWR

PDXEWR

Portland

Fri 1/9

11:05 pm-7:15 am

Nonstop5h 10m

Newark

Mon 1/12

6:29 pm-9:49 pm

Nonstop6h 20m

$277

PortlandNewark

PDX - EWR

PDXEWR

Portland

Fri 1/9

11:05 pm-7:15 am

Nonstop5h 10m

Newark

Sun 1/11

5:30 am-12:18 pm

1 stop9h 48m

$287

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland to United States

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to United States?

In general, February is the cheapest month to fly from Portland to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $287. If you aren’t able to travel during the month of February, then book flights to United States from Portland during January instead. Flights to United States in January, while not as cheap as those in February, still average around $300.

What is the cheapest day to depart on your flight to United States?

According to our data, Friday is the cheapest day to fly to United States from Portland. The lowest ticket price found for a Friday departure recently was $453. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $597. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.

What is the cheapest time of day to depart on your flight to United States?

The cheapest time of day to fly to United States is in the afternoon when flights can be purchased for as low as $260. Try not to purchase tickets in the morning because they tend to be around $519. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Portland to United States flight route?

Fly from Portland to Los Angeles for the best Portland - United States flight prices

How far in advance should I book a flight to United States?

You are more likely to see cheaper flights to United States from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to United States for around $418 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United States from Portland for as low as $301 on momondo.

What cabin class options are available on Portland to United States flights?

There are 4 cabin classes available to choose from on Portland to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Portland to United States flights?

No. A direct flight is the cheapest option for a flight between Portland to United States.

Cheap Portland to United States flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to United States

Best Price Found	$68
Fastest flight time	0h 47m
Direct flights	Every day
Airports in United States	4,296 airports

The best one-way flight to United States from Portland in the past 72 hours is $68. The best round-trip flight deal from Portland to United States found on momondo in the last 72 hours is $83.

The fastest flight from Portland to United States takes 0h 47m

Direct flights go from Portland to United States every day.

There are 4,296 airports in United States. From Portland there are direct flights to Las Vegas Harry Reid Intl (LAS).

Search flight deals

When did momondo last update prices for flights from Portland Airport to United States?
Prices for flights from Portland Airport to United States are updated daily.
How many operators does momondo search for flights from Portland Airport to United States?
As of December 2025, there are 11 operators available to choose from for flights from Portland Airport to United States.
How old do you have to be to fly from Portland Airport to United States?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to United States.
What documentation or ID do you need to fly to United States?
The necessary travel and health documents for your United States trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Portland to United States?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Portland to United States is Boeing 737-800 Passenger/BBJ2 (winglets) (19.39% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (12.68%), Boeing 737 MAX 9 (8.74%), and Boeing 737-900 Passenger/BBJ3 (winglets) (8.20%).

Best airlines flying from Portland to United States

Compare and see reviews for airlines that fly from Portland to United States with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $36	Free Cancellation	Rating 5.8 3,084 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $50	Free Cancellation	Rating 6.3 8,178 reviews	Search Spirit Airlines flights
Alaska Airlines	PriceFrom $63	Free Cancellation	Rating 8.0 11,431 reviews	Search Alaska Airlines flights
Hawaiian Airlines	PriceFrom $78	Free Cancellation	Rating 7.8 2,817 reviews	Search Hawaiian Airlines flights
United Airlines	PriceFrom $109	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
Delta	PriceFrom $119	Free Cancellation	Rating 7.9 8,005 reviews	Search Delta flights
JetBlue	PriceFrom $130	Free Cancellation	Rating 7.2 2,899 reviews	Search JetBlue flights
Southwest	PriceFrom $137	Free Cancellation	Rating 7.9 4,253 reviews	Search Southwest flights
American Airlines	PriceFrom $148	Free Cancellation	Rating 7.2 11,050 reviews	Search American Airlines flights
Sun Country Air	PriceFrom $158	Free Cancellation	Rating 6.9 333 reviews	Search Sun Country Air flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to United States?

Finding the right flight to United States from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to United States quick and easy, saving you time and money.

Can I find flights from Portland to United States with flexible booking policies on momondo?

Flights from Portland to United States with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Portland to United States?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to United States.

I’m not ready to book a flight from Portland to United States right now. Can momondo alert me if prices change?

Price alerts on flights to United States from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your United States trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Popular cities in the United States

Flights to New Yorkfrom $34

Flights to Los Angelesfrom $49

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Flights to Chicagofrom $49

Flights to Orlandofrom $41

Flights to San Franciscofrom $53

Flights to Las Vegasfrom $40

Flights to Washington, D.C.from $49

Flights to Bostonfrom $55

Flights to Atlantafrom $49

Flights to Dallasfrom $52

Flights to Seattlefrom $58

Cheap flights from Portland to the United States from $63

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to the United States departing on 1/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

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Filter for what you want

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Find the cheapest flights from Portland to the United States

Cheap round-trip flights

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Southwest flights from Portland to United States

Our best Southwest deals on Portland to United States flight tickets

Frontier flights from Portland to United States

Our best Frontier deals on Portland to United States flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Portland to the United States that are best for you.

See travel insights to the United States from

How to get the cheapest flight ticket from Portland to United States

What is the cheapest month to fly to United States?

What is the cheapest day to depart on your flight to United States?

What is the cheapest time of day to depart on your flight to United States?

The cheapest time of day to fly to United States is in the afternoon when flights can be purchased for as low as $260. Try not to purchase tickets in the morning because they tend to be around $519. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Portland to United States flight route?

Fly from Portland to Los Angeles for the best Portland - United States flight prices

How far in advance should I book a flight to United States?

What cabin class options are available on Portland to United States flights?

There are 4 cabin classes available to choose from on Portland to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Portland to United States flights?

No. A direct flight is the cheapest option for a flight between Portland to United States.

What is the cheapest airline that flies from Portland to United States?

Frontier, Southwest, and Alaska Airlines are the most popular carriers operating from Portland to United States

What airlines fly to United States?

How often are flights from Portland to the United States delayed?

Historically, on average around 12% of flights between Portland and United States have experienced a delay on any given week. The average delay length over the past 12 months has been 123 minutes.

What is the most punctual flight time for Portland to the United States flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Portland to the United States flights?

According to our data, Sun Country Air have had the least number of delays on this route over the last 12 months; with about 2% of their flights experiencing any sort of delay.

How many flights depart from Portland to United States on average per day?

As of December 2025, there are 115 flights per day flying from Portland to United States. The most common time of day flights depart is 7:00AM, with 56% of flights taking off at noon.

How many flights depart from Portland to United States on average per week?

As of December 2025, 811 flights take off from Portland and land in United States each week. The most common flight departure day for this route is Thu, with 19% of weekly flights taking off on this day.

Cheap Portland to United States flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to United States

Best Price Found

Fastest flight time

Direct flights

Airports in United States

When did momondo last update prices for flights from Portland Airport to United States?

How many operators does momondo search for flights from Portland Airport to United States?

How old do you have to be to fly from Portland Airport to United States?

What documentation or ID do you need to fly to United States?

What is the most popular plane model from Portland to United States?

Best airlines flying from Portland to United States

Compare and see reviews for airlines that fly from Portland to United States with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Portland to United States?

Can I find flights from Portland to United States with flexible booking policies on momondo?

How can momondo help me find flights from Portland to United States?

I’m not ready to book a flight from Portland to United States right now. Can momondo alert me if prices change?

An easier way to manage your United States trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo