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

As of September 2025, 1,232 flights take off from Portland and land in United States each week. The most common flight departure day for this route is Mon, with 19% of weekly flights taking off on this day.

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 40% 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 is the cheapest airline that flies from Portland to United States?

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

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

As of September 2025, there are 176 flights per day flying from Portland to United States. The most common time of day flights depart is 7:00AM, with 49% of flights taking off at noon.

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 September 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.

$49 Cheap Flights from Portland to the United States in 2025/26

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Find the cheapest flights from Portland to the United States

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

7:30 pm - 9:52 pmPDX-ONT

2h 22mnonstop

8:25 am - 10:51 amONT-PDX

2h 26mnonstop

$67Frontier

Find Deal

vie., oct. 17 - dom., oct. 19

7:30 pm - 9:52 pmPDX-ONT

2h 22mnonstop

8:25 am - 10:51 amONT-PDX

2h 26mnonstop

$75Frontier

Find Deal

dom., oct. 12 - dom., oct. 19

4:07 pm - 7:40 pmPDX-DEN

2h 33mnonstop

7:46 am - 9:38 amDEN-PDX

2h 52mnonstop

$133United Airlines

Find Deal

jue., oct. 23 - dom., oct. 26

2:30 pm - 11:09 amPDX-LAX

20h 39m1 stop

2:26 pm - 4:50 pmLAX-PDX

2h 24mnonstop

$137Alaska Airlines

Find Deal

mar., oct. 7 - mié., oct. 8

2:45 pm - 5:15 pmPDX-LAX

2h 30mnonstop

6:00 pm - 8:30 pmLAX-PDX

2h 30mnonstop

$149American Airlines

Find Deal

mié., oct. 15 - mié., oct. 22

5:20 am - 12:22 pmPDX-ONT

7h 02m1 stop

5:49 pm - 12:15 amONT-PDX

6h 26m1 stop

$151Delta

Find Deal

sáb., dic. 6 - mar., dic. 9

7:00 am - 9:17 amPDX-LAS

2h 17mnonstop

7:15 am - 9:41 amLAS-PDX

2h 26mnonstop

$157Alaska Airlines

Find Deal

mar., oct. 14 - mar., oct. 21

3:19 pm - 5:55 pmPDX-PHX

2h 36mnonstop

4:40 pm - 7:27 pmPHX-PDX

2h 47mnonstop

$181American Airlines

Find Deal

mié., oct. 22 - vie., oct. 31

2:23 pm - 11:59 pmPDX-ORD

7h 36m1 stop

2:32 pm - 10:09 pmORD-PDX

9h 37m1 stop

$195Delta

Find Deal

jue., dic. 4 - dom., dic. 7

2:15 pm - 8:25 pmPDX-ORD

4h 10mnonstop

7:15 am - 9:40 amORD-PDX

4h 25mnonstop

$203United Airlines

Find Deal

mié., oct. 15 - lun., oct. 20

Frontier flights from Portland to United States

Our best Frontier deals on Portland to United States flight tickets

Frontier

Oct 17

PDX7:30 pmPortland

2h 22m

ONT9:52 pmOntario

Oct 19

ONT8:25 amOntario

2h 26m

PDX10:51 amPortland

$67

Find similar

Frontier

Oct 12

PDX7:30 pmPortland

2h 22m

ONT9:52 pmOntario

Oct 19

ONT8:25 amOntario

2h 26m

PDX10:51 amPortland

$75

Find similar

Frontier

Oct 24

PDX7:30 pmPortland

2h 22m

ONT9:52 pmOntario

Oct 27

ONT8:32 amOntario

2h 26m

PDX10:58 amPortland

$87

Find similar

Alaska Airlines flights from Portland to United States

Our best Alaska Airlines deals on Portland to United States flight tickets

Alaska Airlines

Oct 7

PDX2:30 pmPortland

20h 39m

1 stop

LAX11:09 amLos Angeles

Oct 8

LAX2:26 pmLos Angeles

2h 24m

PDX4:50 pmPortland

$137

Find similar

Alaska Airlines

Oct 14

PDX7:00 amPortland

2h 17m

LAS9:17 amLas Vegas Harry Reid Intl

Oct 21

LAS7:15 amLas Vegas Harry Reid Intl

2h 26m

PDX9:41 amPortland

$157

Find similar

Alaska Airlines

Oct 14

PDX10:30 amPortland

6h 37m

1 stop

LAS5:07 pmLas Vegas Harry Reid Intl

Oct 21

LAS6:28 pmLas Vegas Harry Reid Intl

2h 22m

PDX8:50 pmPortland

$167

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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

PortlandOntario

PDX - ONT

PDXONT

Portland

vie. 10/17

7:30 pm-9:52 pm

Nonstop2h 22m

Ontario

dom. 10/19

8:25 am-10:51 am

Nonstop2h 26m

$67

PortlandOntario

PDX - ONT

PDXONT

Portland

dom. 10/12

7:30 pm-9:52 pm

Nonstop2h 22m

Ontario

dom. 10/19

8:25 am-10:51 am

Nonstop2h 26m

$75

PortlandDenver

PDX - DEN

PDXDEN

Portland

jue. 10/23

4:07 pm-7:40 pm

Nonstop2h 33m

Denver Intl

dom. 10/26

7:46 am-9:38 am

Nonstop2h 52m

$133

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

mar. 10/7

2:30 pm-11:09 am

1 stop20h 39m

Los Angeles

mié. 10/8

2:26 pm-4:50 pm

Nonstop2h 24m

$137

PortlandLos Angeles

PDX - LAX

PDXLAX

Portland

mié. 10/15

2:45 pm-5:15 pm

Nonstop2h 30m

Los Angeles

mié. 10/22

6:00 pm-8:30 pm

Nonstop2h 30m

$149

PortlandOntario

PDX - ONT

PDXONT

Portland

sáb. 12/6

5:20 am-12:22 pm

1 stop7h 02m

Ontario

mar. 12/9

5:49 pm-12:15 am

1 stop6h 26m

$151

PortlandLas Vegas

PDX - LAS

PDXLAS

Portland

mar. 10/14

7:00 am-9:17 am

Nonstop2h 17m

Las Vegas Harry Reid Intl

mar. 10/21

7:15 am-9:41 am

Nonstop2h 26m

$157

PortlandPhoenix

PDX - PHX

PDXPHX

Portland

mié. 10/22

3:19 pm-5:55 pm

Nonstop2h 36m

Phoenix Sky Harbor Intl

vie. 10/31

4:40 pm-7:27 pm

Nonstop2h 47m

$181

PortlandChicago

PDX - ORD

PDXORD

Portland

jue. 12/4

2:23 pm-11:59 pm

1 stop7h 36m

Chicago O'Hare Intl

dom. 12/7

2:32 pm-10:09 pm

1 stop9h 37m

$195

PortlandChicago

PDX - ORD

PDXORD

Portland

mié. 10/15

2:15 pm-8:25 pm

Nonstop4h 10m

Chicago O'Hare Intl

lun. 10/20

7:15 am-9:40 am

Nonstop4h 25m

$203

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

Other information

What is the cheapest month to fly to United States?

In general, January 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 $278. If you aren’t able to travel during the month of January, then book flights to United States from Portland during February instead. Flights to United States in February, while not as cheap as those in January, still average around $287.

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

According to our data, Thursday is the cheapest day to fly to United States from Portland. The lowest ticket price found for a Thursday departure recently was $467. 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 $609. 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 $530. 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 Las Vegas Harry Reid Intl 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 $398 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 $320 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	$53
Fastest flight time	2h 05m
Direct flights	Every day
Airports in United States	2 airports

The best one-way flight to United States from Portland in the past 72 hours is $53. The best round-trip flight deal from Portland to United States found on momondo in the last 72 hours is $106.

The fastest flight from Portland to United States takes 2h 05m

Direct flights go from Portland to United States every day.

There are 2 airports near United States: Ontario (ONT), 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 September 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) (13.55% of total bookings). The next most popular plane models are Boeing 737 MAX 9 (11.47%), Boeing 737-900 Passenger/BBJ3 (winglets) (10.09%), and Boeing 737 MAX 8 (9.51%).

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 3,173 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $40	Free Cancellation	Rating 6.3 8,023 reviews	Search Spirit Airlines flights
Alaska Airlines	PriceFrom $69	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
Hawaiian Airlines	PriceFrom $78	Free Cancellation	Rating 7.8 2,729 reviews	Search Hawaiian Airlines flights
United Airlines	PriceFrom $112	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights
JetBlue	PriceFrom $129	Free Cancellation	Rating 7.2 2,914 reviews	Search JetBlue flights
Delta	PriceFrom $129	Free Cancellation	Rating 7.9 7,961 reviews	Search Delta flights
American Airlines	PriceFrom $133	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $135	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights
Sun Country Air	PriceFrom $158	Free Cancellation	Rating 6.9 330 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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vie. 10/17

vie. 10/24

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Cheap flights from Portland to the United States from $49

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 9/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Portland to the United States

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Frontier flights from Portland to United States

Our best Frontier deals on Portland to United States flight tickets

Alaska Airlines flights from Portland to United States

Our best Alaska Airlines 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

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

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 $530. 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 Las Vegas Harry Reid Intl 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, Spirit Airlines, and Southwest are the most popular carriers operating from Portland to United States

What airlines fly to United States?

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

As of September 2025, there are 176 flights per day flying from Portland to United States. The most common time of day flights depart is 7:00AM, with 49% of flights taking off at noon.

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

As of September 2025, 1,232 flights take off from Portland and land in United States each week. The most common flight departure day for this route is Mon, 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