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

Delta, United Airlines, and Southwest 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 44% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 11 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 11m and 2h 51m, 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 November 2025, 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.

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

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 November 2025. The most frequent departure day is Tue, with 22% of weekly flights leaving on this day.

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

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8:54 am - 11:54 amLAX-SEA

3h 00mnonstop

5:43 pm - 8:31 pmSEA-LAX

2h 48mnonstop

$107Frontier

Find Deal

Thu, Jan 15 - Thu, Jan 15

9:36 pm - 12:42 amLAX-SEA

3h 06mnonstop

6:00 am - 8:46 amSEA-LAX

2h 46mnonstop

$108Frontier

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Thu, Dec 25 - Thu, Jan 1

10:48 pm - 12:59 amSFO-SEA

2h 11mnonstop

5:00 am - 7:36 amSEA-SFO

2h 36mnonstop

$125United Airlines

Find Deal

Sun, Dec 21 - Wed, Dec 31

1:00 pm - 7:34 pmSFO-SEA

6h 34m1 stop

9:20 pm - 11:28 pmSEA-SFO

2h 08mnonstop

$126Delta

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Thu, Jan 8 - Mon, Jan 12

5:55 am - 12:57 pmSFO-SEA

7h 02m1 stop

9:20 pm - 11:28 pmSEA-SFO

2h 08mnonstop

$127Delta

Find Deal

Thu, Jan 8 - Mon, Jan 12

8:42 am - 11:03 amSFO-SEA

2h 21mnonstop

8:15 am - 10:37 amSEA-SFO

2h 22mnonstop

$131Alaska Airlines

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Thu, Mar 12 - Sun, Mar 15

2:21 pm - 4:36 pmSFO-SEA

2h 15mnonstop

7:09 am - 9:33 amSEA-SFO

2h 24mnonstop

$132Alaska Airlines

Find Deal

Tue, Dec 16 - Thu, Jan 1

7:50 pm - 11:15 pmEWR-SEA

6h 25mnonstop

8:40 am - 7:17 pmSEA-EWR

7h 37m1 stop

$210United Airlines

Find Deal

Sat, Jan 10 - Sat, Jan 17

5:44 am - 10:43 amHOU-SEA

6h 59m1 stop

7:35 am - 6:06 pmSEA-HOU

8h 31m1 stop

$256American Airlines

Find Deal

Wed, Dec 17 - Tue, Jan 6

6:00 am - 11:01 amHOU-SEA

7h 01m1 stop

8:35 am - 6:06 pmSEA-HOU

7h 31m1 stop

$277American Airlines

Find Deal

Sat, Jan 17 - Sat, Jan 24

Hawaiian Airlines flights from United States to State of Washington

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

Hawaiian Airlines

Jan 15

SFO7:57 amSan Francisco

6h 46m

1 stop

SEA2:43 pmSeattle/Tacoma Intl

Jan 18

SEA3:45 pmSeattle/Tacoma Intl

2h 14m

SFO5:59 pmSan Francisco

$128

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Hawaiian Airlines

Jan 17

ONT5:59 pmOntario

4h 29m

1 stop

SEA10:28 pmSeattle/Tacoma Intl

Jan 18

SEA8:15 amSeattle/Tacoma Intl

2h 44m

ONT10:59 amOntario

$138

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Hawaiian Airlines

Jan 7

SAN3:10 pmSan Diego

5h 25m

1 stop

SEA8:35 pmSeattle/Tacoma Intl

Jan 14

SEA7:15 amSeattle/Tacoma Intl

2h 52m

SAN10:07 amSan Diego

$145

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Southwest flights from United States to State of Washington

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

Southwest

Jan 8

SAN2:15 pmSan Diego

6h 05m

1 stop

SEA8:20 pmSeattle/Tacoma Intl

Jan 12

SEA10:10 amSeattle/Tacoma Intl

5h 15m

1 stop

SAN3:25 pmSan Diego

$139

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Southwest

Jan 8

SAN2:20 pmSan Diego

7h 30m

2 stops

SEA9:50 pmSeattle/Tacoma Intl

Jan 12

SEA12:45 pmSeattle/Tacoma Intl

5h 55m

1 stop

SAN6:40 pmSan Diego

$144

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Southwest

Jan 8

SFO5:30 amSan Francisco

6h 50m

1 stop

SEA12:20 pmSeattle/Tacoma Intl

Jan 12

SEA5:15 amSeattle/Tacoma Intl

6h 35m

1 stop

SFO11:50 amSan Francisco

$151

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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.

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Route

Depart

Return

Price

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Thu 1/15

8:54 am-11:54 am

Nonstop3h 00m

Seattle/Tacoma Intl

Thu 1/15

5:43 pm-8:31 pm

Nonstop2h 48m

$107

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Thu 12/25

9:36 pm-12:42 am

Nonstop3h 06m

Seattle/Tacoma Intl

Thu 1/1

6:00 am-8:46 am

Nonstop2h 46m

$108

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Sun 12/21

10:48 pm-12:59 am

Nonstop2h 11m

Seattle/Tacoma Intl

Wed 12/31

5:00 am-7:36 am

Nonstop2h 36m

$125

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 1/8

1:00 pm-7:34 pm

1 stop6h 34m

Seattle/Tacoma Intl

Mon 1/12

9:20 pm-11:28 pm

Nonstop2h 08m

$126

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 1/8

5:55 am-12:57 pm

1 stop7h 02m

Seattle/Tacoma Intl

Mon 1/12

9:20 pm-11:28 pm

Nonstop2h 08m

$127

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 3/12

8:42 am-11:03 am

Nonstop2h 21m

Seattle/Tacoma Intl

Sun 3/15

8:15 am-10:37 am

Nonstop2h 22m

$131

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Tue 12/16

2:21 pm-4:36 pm

Nonstop2h 15m

Seattle/Tacoma Intl

Thu 1/1

7:09 am-9:33 am

Nonstop2h 24m

$132

NewarkSeattle

EWR - SEA

EWRSEA

Newark

Sat 1/10

7:50 pm-11:15 pm

Nonstop6h 25m

Seattle/Tacoma Intl

Sat 1/17

8:40 am-7:17 pm

1 stop7h 37m

$210

HoustonSeattle

HOU - SEA

HOUSEA

Houston Hobby

Wed 12/17

5:44 am-10:43 am

1 stop6h 59m

Seattle/Tacoma Intl

Tue 1/6

7:35 am-6:06 pm

1 stop8h 31m

$256

HoustonSeattle

HOU - SEA

HOUSEA

Houston Hobby

Sat 1/17

6:00 am-11:01 am

1 stop7h 01m

Seattle/Tacoma Intl

Sat 1/24

8:35 am-6:06 pm

1 stop7h 31m

$277

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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 $317.

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 $271. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from United States to State of Washington for around $358.

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 $238. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $330 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 Seattle/Tacoma Intl 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 $413 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 $353 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	$62
Fastest flight time	0h 47m
Direct flights	Every day
Airports in State of Washington	1 airport

The best one-way flight to State of Washington from United States in the past 72 hours is $62. The best round-trip flight deal from United States to State of Washington found on momondo in the last 72 hours is $58.

The fastest flight from United States to State of Washington takes 0h 47m

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

There is 1 airport near State of Washington: 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 November 2025, 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 17.40% of the total bookings. Other popular models include Boeing 737 MAX 9 with 12.41%, Boeing 737-900 Passenger/BBJ3 (winglets) with 10.93%, and Airbus A321neo with 10.10%.

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 7.2 700 reviews	Search Allegiant Air flights
Frontier	PriceFrom $50	Free Cancellation	Rating 5.8 3,097 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $58	Free Cancellation	Rating 6.3 8,157 reviews	Search Spirit Airlines flights
Hawaiian Airlines	PriceFrom $78	Free Cancellation	Rating 7.8 2,813 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $101	Free Cancellation	Rating 7.9 7,998 reviews	Search Delta flights
Alaska Airlines	PriceFrom $125	Free Cancellation	Rating 8.0 11,340 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $130	Free Cancellation	Rating 7.4 9,043 reviews	Search United Airlines flights
Southwest	PriceFrom $132	Free Cancellation	Rating 8.0 4,252 reviews	Search Southwest flights
JetBlue	PriceFrom $140	Free Cancellation	Rating 7.2 2,903 reviews	Search JetBlue flights
Sun Country Air	PriceFrom $153	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 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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Popular cities in Washington

Flights to New Yorkfrom $33

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Flights to Orlandofrom $48

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Flights to San Franciscofrom $57

Flights to Washington, D.C.from $38

Flights to Bostonfrom $59

Flights to Atlantafrom $48

Flights to Dallasfrom $54

Flights to Seattlefrom $58

Fly your favorite airline to Washington

American Airlines flights to Washingtonfrom $256

Alaska Airlines flights to Washingtonfrom $78

Frontier flights to Washingtonfrom $29

Delta flights to Washingtonfrom $79

United Airlines flights to Washingtonfrom $160

Scandinavian Airlines

JetBlue

KLM

Etihad Airways

Cheap flights from the United States to Washington from $59

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 12/17. 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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Find the cheapest flights from the United States to Washington

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Hawaiian Airlines flights from United States to State of Washington

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

Southwest flights from United States to State of Washington

Our best Southwest 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.

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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

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?

Fly from Las Vegas Harry Reid Intl to Seattle/Tacoma Intl for the best United States - Washington flight prices

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?

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.

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

Delta, United Airlines, and Southwest are the most popular carriers operating 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?

As of November 2025, 298 flights take off from United States and land in State of Washington each day. The most common flight departure time for this route is 11:00AM, with 38% of daily flights taking off at noon.

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 November 2025. The most frequent departure day is Tue, with 22% of weekly flights leaving on this day.

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 11m and 2h 51m, respectively.

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

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

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

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

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

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

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

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

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

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

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