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

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

What airlines fly to State of Washington?

Alaska Airlines, Delta and Frontier are the top three most popular airlines that fly to State of Washington from United States according to our data. Alaska Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 12 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

How long is the flight from United States to State of Washington?

If you’re flying from a popular airport in United States, such as San Francisco or Los Angeles, and flying into State of Washington, then you can expect flight times to average 2h 06m and 2h 48m, respectively.

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

Prices for flights from United States to Washington were last updated today.

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

As of March 2026, there are 10 operators available to choose from for flights from United States to Washington.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to Washington.

What documentation or ID do you need to fly to Washington?

The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$44 Cheap Flights from the United States to Washington in 2026

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Find the cheapest flights from the United States to Washington

Round-trip

One-way

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Direct

Recent round-trip flight deals from the United States to Washington

Enter your travel dates to find the best prices.

2:45 pm - 5:42 pm

LAX

SEA

2h 57mnonstop

11:06 am - 2:03 pm

SEA

LAX

2h 57mnonstop

$87Frontier

Wed, Apr 29 - Sat, May 9

2:55 pm - 5:52 pm

LAX

SEA

2h 57mnonstop

11:12 am - 2:04 pm

SEA

LAX

2h 52mnonstop

$88Frontier

Fri, Apr 24 - Sun, Apr 26

12:26 pm - 2:42 pm

SFO

SEA

2h 16mnonstop

2:53 pm - 5:14 pm

SEA

SFO

2h 21mnonstop

$126Alaska Airlines

Wed, Apr 29 - Wed, May 6

9:00 am - 11:22 am

SFO

SEA

2h 22mnonstop

7:10 am - 9:27 am

SEA

SFO

2h 17mnonstop

$127Alaska Airlines

Wed, Apr 29 - Wed, May 6

10:32 am - 12:55 pm

SFO

SEA

2h 23mnonstop

7:00 am - 9:22 am

SEA

SFO

2h 22mnonstop

$136Delta

Thu, Apr 23 - Sun, Apr 26

5:59 am - 8:19 am

SFO

SEA

2h 20mnonstop

7:00 am - 9:22 am

SEA

SFO

2h 22mnonstop

$137Delta

Thu, Apr 23 - Sun, Apr 26

5:55 pm - 8:53 pm

IAD

SEA

5h 58mnonstop

8:10 am - 4:22 pm

SEA

IAD

5h 12mnonstop

$199United Airlines

Tue, May 5 - Tue, May 12

7:00 am - 1:15 pm

IAD

SEA

9h 15m

1 stop

10:29 pm - 8:49 am

SEA

IAD

7h 20m

1 stop

$218American Airlines

Tue, Apr 28 - Tue, May 5

5:59 pm - 12:44 am

IAD

SEA

9h 45m

1 stop

1:33 pm - 11:59 pm

SEA

IAD

7h 26m

1 stop

$220American Airlines

Sat, Apr 25 - Fri, May 1

8:30 pm - 11:46 pm

EWR

SEA

6h 16mnonstop

10:55 pm - 7:16 am

SEA

EWR

5h 21mnonstop

$257United Airlines

Tue, Apr 14 - Sat, Apr 18

Frontier flights from United States to State of Washington

Our best Frontier deals on United States to State of Washington flight tickets

Frontier

Apr 29

LAX2:45 pmLos Angeles Los Angeles

2h 57m

SEA5:42 pmSeattle/Tacoma Intl

May 9

SEA11:06 amSeattle/Tacoma Intl

2h 57m

LAX2:03 pmLos Angeles Los Angeles

$87

Frontier

Apr 29

LAX2:45 pmLos Angeles Los Angeles

2h 57m

SEA5:42 pmSeattle/Tacoma Intl

May 6

SEA11:06 amSeattle/Tacoma Intl

2h 57m

LAX2:03 pmLos Angeles Los Angeles

$88

Frontier

May 9

LAX2:24 pmLos Angeles Los Angeles

3h 13m

SEA5:37 pmSeattle/Tacoma Intl

May 16

SEA11:06 amSeattle/Tacoma Intl

2h 57m

LAX2:03 pmLos Angeles Los Angeles

$94

United Airlines flights from United States to State of Washington

Our best United Airlines deals on United States to State of Washington flight tickets

United Airlines

Apr 30

SFO8:05 amSan Francisco

2h 20m

SEA10:25 amSeattle/Tacoma Intl

May 3

SEA7:08 amSeattle/Tacoma Intl

2h 18m

SFO9:26 amSan Francisco

$146

United Airlines

May 1

SFO10:35 pmSan Francisco

2h 37m

SEA1:12 amSeattle/Tacoma Intl

May 4

SEA7:08 amSeattle/Tacoma Intl

2h 18m

SFO9:26 amSan Francisco

$148

United Airlines

May 1

SFO8:58 pmSan Francisco

2h 31m

SEA11:29 pmSeattle/Tacoma Intl

May 3

SEA7:08 amSeattle/Tacoma Intl

2h 18m

SFO9:26 amSan Francisco

$158

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles Los Angeles

Wed 4/29

2:45 pm-5:42 pm

Nonstop2h 57m

Seattle/Tacoma Intl

Sat 5/9

11:06 am-2:03 pm

Nonstop2h 57m

$87

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles Los Angeles

Fri 4/24

2:55 pm-5:52 pm

Nonstop2h 57m

Seattle/Tacoma Intl

Sun 4/26

11:12 am-2:04 pm

Nonstop2h 52m

$88

Quickest round-trip

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 4/29

12:26 pm-2:42 pm

Nonstop2h 16m

Seattle/Tacoma Intl

Wed 5/6

2:53 pm-5:14 pm

Nonstop2h 21m

$126

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 4/29

9:00 am-11:22 am

Nonstop2h 22m

Seattle/Tacoma Intl

Wed 5/6

7:10 am-9:27 am

Nonstop2h 17m

$127

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 4/23

10:32 am-12:55 pm

Nonstop2h 23m

Seattle/Tacoma Intl

Sun 4/26

7:00 am-9:22 am

Nonstop2h 22m

$136

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 4/23

5:59 am-8:19 am

Nonstop2h 20m

Seattle/Tacoma Intl

Sun 4/26

7:00 am-9:22 am

Nonstop2h 22m

$137

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Tue 5/5

5:55 pm-8:53 pm

Nonstop5h 58m

Seattle/Tacoma Intl

Tue 5/12

8:10 am-4:22 pm

Nonstop5h 12m

$199

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Tue 4/28

7:00 am-1:15 pm

1 stop9h 15m

Seattle/Tacoma Intl

Tue 5/5

10:29 pm-8:49 am

1 stop7h 20m

$218

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Sat 4/25

5:59 pm-12:44 am

1 stop9h 45m

Seattle/Tacoma Intl

Fri 5/1

1:33 pm-11:59 pm

1 stop7h 26m

$220

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Tue 4/14

8:30 pm-11:46 pm

Nonstop6h 16m

Seattle/Tacoma Intl

Sat 4/18

10:55 pm-7:16 am

Nonstop5h 21m

$257

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 United States to State of Washington

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 State of Washington?

The month of October is, on average, the cheapest month to fly to State of Washington from United States, with most prices found around $287. If you aren’t able to travel to State of Washington during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $307.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from United States to State of Washington is on a Friday. Travelers who choose to depart for State of Washington on a Friday will often find tickets for as low as $275. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from United States to State of Washington for around $381.

What is the cheapest time of day to depart on your flight to State of Washington?

The cheapest time of day to fly to State of Washington is in the afternoon when flights can be purchased for as low as $260. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $336 on average. Flights to State of Washington from United States in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest United States to Washington flight route?

Fly from Las Vegas Harry Reid Intl to Everett Paine Field for the best United States - Washington flight prices

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $421 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from United States for as low as $358 on momondo.

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

There are 4 cabin classes available to choose from on United States to Washington 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 United States to State of Washington flights?

No. A direct flight is the cheapest option for a flight between United States to State of Washington.

Cheap United States to State of Washington flight deals and tips

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

Best Price Found	$58
Fastest flight time	0h 45m
Direct flights	Every day
Airports in State of Washington	96 airports

The best one-way flight to State of Washington from United States in the past 72 hours is $58. The best round-trip flight deal from United States to State of Washington found on momondo in the last 72 hours is $79.

The fastest flight from United States to State of Washington takes 0h 45m

Direct flights go from United States to State of Washington every day.

There are 96 airports in State of Washington. From United States there are direct flights to Seattle/Tacoma Intl (SEA).

Search flight deals

When did momondo last update prices for flights from United States to Washington?
Prices for flights from United States to Washington were last updated today.
How many operators does momondo search for flights from United States to Washington?
As of March 2026, there are 10 operators available to choose from for flights from United States to Washington.
How old do you have to be to fly from United States to Washington?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to Washington.
What documentation or ID do you need to fly to Washington?
The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from United States to State of Washington?
Based on momondo bookings for flights between United States and State of Washington, the leading plane model is Boeing 737-800 Passenger/BBJ2 (winglets), making up 17.74% of the total bookings. Other popular models include Airbus A321neo with 13.90%, Boeing 737-900 with 11.20%, and Boeing 737 with 9.71%.

Best airlines flying from United States to State of Washington

Compare and see reviews for airlines that fly from United States to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Allegiant Air	PriceFrom $36	Free Cancellation	Rating 7.3 713 reviews	Search Allegiant Air flights
Frontier	PriceFrom $47	Free Cancellation	Rating 5.7 3,024 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $59	Free Cancellation	Rating 6.3 8,538 reviews	Search Spirit Airlines flights
Delta	PriceFrom $74	Free Cancellation	Rating 7.9 8,303 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $78	Free Cancellation	Rating 7.8 2,841 reviews	Search Hawaiian Airlines flights
Southwest	PriceFrom $97	Free Cancellation	Rating 8.0 4,324 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $106	Free Cancellation	Rating 7.9 12,078 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $117	Free Cancellation	Rating 7.4 9,444 reviews	Search United Airlines flights
JetBlue	PriceFrom $125	Free Cancellation	Rating 7.2 2,910 reviews	Search JetBlue flights
American Airlines	PriceFrom $158	Free Cancellation	Rating 7.1 11,481 reviews	Search American Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from United States to Washington. momondo saves you time and could save you money on your trip.

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

Flights from United States to Washington 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 United States to Washington?

Once all potential United States to Washington flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Washington, momondo offers a useful price alert feature which will track prices for flights to Washington from United States and alert you when they change.

An easier way to manage your State of Washington trip

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Cheap flights from the United States to Washington from $44

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Washington departing on 5/6. 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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Frontier flights from United States to State of Washington

Our best Frontier deals on United States to State of Washington flight tickets

United Airlines flights from United States to State of Washington

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momondo Fare Finder

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

See travel insights to Washington from

How to get the cheapest flight ticket from United States to State of Washington

What is the cheapest month to fly to State of Washington?

What is the cheapest day to depart on your flight to State of Washington?

What is the cheapest time of day to depart on your flight to State of Washington?

What is the cheapest United States to Washington flight route?

How far in advance should I book a flight to State of Washington?

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

Can stopping save me money on United States to State of Washington flights?

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

What airlines fly to State of Washington?

How many flights depart from United States to State of Washington on average per day?

How many flights depart from United States to State of Washington on average per week?

How long is the flight from United States to State of Washington?

Cheap United States to State of Washington flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in State of Washington

Best airlines flying from United States to State of Washington

Compare and see reviews for airlines that fly from United States to State of Washington with momondo

Why use momondo?

An easier way to manage your State of Washington 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 Washington

Popular cities in Washington

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

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