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

Southwest, United Airlines, and Alaska 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 47% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 13 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 10m and 2h 45m, 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 June 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.

$76 Cheap Flights from the United States to Washington in 2026

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

The number of flights available between United States and State of Washington is 2,091 per week as of June 2026. The most frequent departure day is Sun, with 22% of weekly flights leaving on this day.

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Find the cheapest flights from the United States to Washington

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

Enter your travel dates to find the best prices.

3:04 pm - 5:51 pm

LAX

SEA

2h 47mnonstop

2:15 pm - 5:03 pm

SEA

LAX

2h 48mnonstop

$144Frontier

dim., août 9 - sam., sept. 12

3:25 pm - 6:26 pm

LAX

SEA

3h 01mnonstop

11:03 am - 2:01 pm

SEA

LAX

2h 58mnonstop

$148Frontier

mer., juin 24 - mer., juil. 1

3:04 pm - 5:51 pm

LAX

SEA

2h 47mnonstop

10:34 am - 1:34 pm

SEA

LAX

3h 00mnonstop

$149Frontier

lun., juil. 13 - lun., juil. 20

2:00 pm - 4:13 pm

SFO

SEA

2h 13mnonstop

7:20 am - 9:36 am

SEA

SFO

2h 16mnonstop

$180Delta

lun., août 17 - ven., sept. 18

7:38 pm - 2:46 pm

DFW

SEA

21h 08m

1 stop

5:56 pm - 11:59 pm

SEA

DFW

4h 03mnonstop

$303Alaska Airlines

mar., août 25 - mer., août 26

7:20 am - 10:22 am

EWR

SEA

6h 02mnonstop

10:37 pm - 6:59 am

SEA

EWR

5h 22mnonstop

$313Alaska Airlines

mer., sept. 30 - lun., oct. 5

1:10 pm - 7:07 pm

IAD

SEA

8h 57m

1 stop

2:34 pm - 12:32 am

SEA

IAD

6h 58m

1 stop

$318United Airlines

ven., août 21 - ven., août 28

3:40 pm - 6:41 pm

EWR

SEA

6h 01mnonstop

11:04 pm - 9:59 am

SEA

EWR

7h 55m

1 stop

$319United Airlines

mar., sept. 1 - jeu., sept. 10

6:00 am - 10:31 am

EWR

SEA

7h 31m

1 stop

11:59 pm - 10:57 am

SEA

EWR

7h 58m

1 stop

$322Delta

dim., sept. 6 - jeu., sept. 17

6:14 am - 2:31 pm

IAD

SEA

11h 17m

1 stop

5:00 am - 5:48 pm

SEA

IAD

9h 48m

1 stop

$330American Airlines

mar., juil. 28 - jeu., août 6

Delta flights from United States to State of Washington

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

Delta

Aug 17

SFO8:59 pmSan Francisco

2h 20m

SEA11:19 pmSeattle/Tacoma Intl

Aug 21

SEA5:51 pmSeattle/Tacoma Intl

2h 28m

SFO8:19 pmSan Francisco

$180

Delta

Aug 11

DEN1:21 pmDenver Intl

3h 02m

SEA3:23 pmSeattle/Tacoma Intl

Aug 19

SEA1:55 pmSeattle/Tacoma Intl

2h 53m

DEN5:48 pmDenver Intl

$195

Delta

Aug 25

SFO2:00 pmSan Francisco

2h 13m

SEA4:13 pmSeattle/Tacoma Intl

Sep 3

SEA5:51 pmSeattle/Tacoma Intl

2h 28m

SFO8:19 pmSan Francisco

$202

Frontier flights from United States to State of Washington

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

Frontier

Aug 9

LAX3:04 pmLos Angeles

2h 47m

SEA5:51 pmSeattle/Tacoma Intl

Sep 12

SEA2:15 pmSeattle/Tacoma Intl

2h 48m

LAX5:03 pmLos Angeles

$144

Frontier

Jul 11

LAX3:04 pmLos Angeles

2h 47m

SEA5:51 pmSeattle/Tacoma Intl

Jul 15

SEA10:34 amSeattle/Tacoma Intl

3h 00m

LAX1:34 pmLos Angeles

$147

Frontier

Jun 24

LAX3:25 pmLos Angeles

3h 01m

SEA6:26 pmSeattle/Tacoma Intl

Jul 1

SEA11:03 amSeattle/Tacoma Intl

2h 58m

LAX2:01 pmLos Angeles

$148

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

dim. 8/9

3:04 pm-5:51 pm

Nonstop2h 47m

Seattle/Tacoma Intl

sam. 9/12

2:15 pm-5:03 pm

Nonstop2h 48m

$144

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

mer. 6/24

3:25 pm-6:26 pm

Nonstop3h 01m

Seattle/Tacoma Intl

mer. 7/1

11:03 am-2:01 pm

Nonstop2h 58m

$148

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

lun. 7/13

3:04 pm-5:51 pm

Nonstop2h 47m

Seattle/Tacoma Intl

lun. 7/20

10:34 am-1:34 pm

Nonstop3h 00m

$149

Quickest round-trip

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

lun. 8/17

2:00 pm-4:13 pm

Nonstop2h 13m

Seattle/Tacoma Intl

ven. 9/18

7:20 am-9:36 am

Nonstop2h 16m

$180

DallasSeattle

DFW - SEA

DFWSEA

Dallas/Fort Worth

mar. 8/25

7:38 pm-2:46 pm

1 stop21h 08m

Seattle/Tacoma Intl

mer. 8/26

5:56 pm-11:59 pm

Nonstop4h 03m

$303

NewarkSeattle

EWR - SEA

EWRSEA

Newark

mer. 9/30

7:20 am-10:22 am

Nonstop6h 02m

Seattle/Tacoma Intl

lun. 10/5

10:37 pm-6:59 am

Nonstop5h 22m

$313

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

ven. 8/21

1:10 pm-7:07 pm

1 stop8h 57m

Seattle/Tacoma Intl

ven. 8/28

2:34 pm-12:32 am

1 stop6h 58m

$318

NewarkSeattle

EWR - SEA

EWRSEA

Newark

mar. 9/1

3:40 pm-6:41 pm

Nonstop6h 01m

Seattle/Tacoma Intl

jeu. 9/10

11:04 pm-9:59 am

1 stop7h 55m

$319

NewarkSeattle

EWR - SEA

EWRSEA

Newark

dim. 9/6

6:00 am-10:31 am

1 stop7h 31m

Seattle/Tacoma Intl

jeu. 9/17

11:59 pm-10:57 am

1 stop7h 58m

$322

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

mar. 7/28

6:14 am-2:31 pm

1 stop11h 17m

Seattle/Tacoma Intl

jeu. 8/6

5:00 am-5:48 pm

1 stop9h 48m

$330

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 January is, on average, the cheapest month to fly to State of Washington from United States, with most prices found around $292. If you aren’t able to travel to State of Washington during the month of January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $297.

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 Thursday. Travelers who choose to depart for State of Washington on a Thursday will often find tickets for as low as $280. 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 $390.

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 $268. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $339 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 Bellingham 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 $424 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 $365 on momondo.

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

There are 4 cabin classes available to choose from on United States to State of 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	$55
Fastest flight time	0h 30m
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 $55. The best round-trip flight deal from United States to State of Washington found on momondo in the last 72 hours is $102.

The fastest flight from United States to State of Washington takes 0h 30m

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

Frequently asked questions about flying from the United States to Washington

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 June 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 18.48% of the total bookings. Other popular models include Airbus A321neo with 16.52%, Boeing 737-900 with 10.99%, and Boeing 737 MAX 8 with 9.79%.

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 $37	Free Cancellation	Rating 7.3 708 reviews	Search Allegiant Air flights
Frontier	PriceFrom $53	Free Cancellation	Rating 5.6 2,924 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $62	Free Cancellation	Rating 6.2	Search Spirit Airlines flights
Delta	PriceFrom $69	Free Cancellation	Rating 7.9 8,406 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $78	Free Cancellation	Rating 7.8 2,833 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom $97	Free Cancellation	Rating 7.9 12,443 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $97	Free Cancellation	Rating 8.0 4,257 reviews	Search Southwest flights
United Airlines	PriceFrom $117	Free Cancellation	Rating 7.4 9,769 reviews	Search United Airlines flights
JetBlue	PriceFrom $133	Free Cancellation	Rating 7.1 2,985 reviews	Search JetBlue flights
Sun Country Air	PriceFrom $172	Free Cancellation	Rating 6.8 333 reviews	Search Sun Country Air 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 $87

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 8/20. 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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Delta flights from United States to State of Washington

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

Frontier flights from United States to State of Washington

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

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 State of 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

Frequently asked questions about flying from the United States to 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

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