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

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 1h 56m and 2h 37m, respectively.

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 10 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

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 July 2026, there are 9 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.

$81 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 day?

As of July 2026, 375 flights take off from United States and land in State of Washington each day. The most common flight departure time for this route is 8:00PM, with 35% of daily flights taking off in the evening.

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 2,626 per week as of July 2026. The most frequent departure day is Fri, with 18% of weekly flights leaving on this day.

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Find the cheapest flights from the United States to Washington

Round-trip

One-way

Last minute

Direct

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

Enter your travel dates to find the best prices.

5:05 pm - 10:55 pm

SFO

SEA

5h 50m

1 stop

8:30 am - 4:55 pm

SEA

SFO

8h 25m

1 stop

$167Southwest

sáb., sep. 5 - mar., sep. 8

8:56 pm - 10:39 am

SFO

SEA

13h 43m

1 stop

10:34 am - 8:40 pm

SEA

SFO

10h 06m

1 stop

$168Frontier

mar., ago. 18 - mié., ago. 26

1:55 pm - 4:14 pm

SFO

SEA

2h 19mnonstop

7:00 am - 9:17 am

SEA

SFO

2h 17mnonstop

$169United Airlines

mar., ago. 11 - sáb., ago. 15

11:38 am - 6:52 pm

SFO

SEA

7h 14m

1 stop

7:18 am - 9:37 am

SEA

SFO

2h 19mnonstop

$170Alaska Airlines

mié., sep. 9 - sáb., sep. 12

7:00 am - 9:08 am

SFO

SEA

2h 08mnonstop

9:25 pm - 11:40 pm

SEA

SFO

2h 15mnonstop

$171Alaska Airlines

jue., sep. 24 - vie., sep. 25

1:55 pm - 4:14 pm

SFO

SEA

2h 19mnonstop

9:00 am - 11:19 am

SEA

SFO

2h 19mnonstop

$175United Airlines

sáb., sep. 12 - lun., sep. 14

8:02 am - 10:56 am

LAX

SEA

2h 54mnonstop

10:34 am - 1:34 pm

SEA

LAX

3h 00mnonstop

$199Multiple Airlines

mié., sep. 2 - mar., sep. 8

10:45 am - 4:56 pm

LAX

SEA

6h 11m

1 stop

11:06 am - 2:01 pm

SEA

LAX

2h 55mnonstop

$202Multiple Airlines

dom., sep. 6 - vie., sep. 11

1:00 pm - 9:15 pm

BOS

SEA

11h 15m

1 stop

11:55 pm - 8:19 am

SEA

BOS

5h 24mnonstop

$298JetBlue

mar., oct. 20 - mar., oct. 20

2:45 pm - 9:04 pm

BOS

SEA

9h 19m

1 stop

11:44 pm - 8:00 am

SEA

BOS

5h 16mnonstop

$300JetBlue

mar., sep. 8 - mar., sep. 8

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Alaska Airlines flights from United States to State of Washington

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

Alaska Airlines

Sep 9

SFO11:38 amSan Francisco

7h 14m

1 stop

SEA6:52 pmSeattle/Tacoma Intl

Sep 12

SEA7:18 amSeattle/Tacoma Intl

2h 19m

SFO9:37 amSan Francisco

$170

Alaska Airlines

Sep 17

SFO6:00 amSan Francisco

2h 08m

SEA8:08 amSeattle/Tacoma Intl

Sep 18

SEA8:30 pmSeattle/Tacoma Intl

2h 15m

SFO10:45 pmSan Francisco

$171

Alaska Airlines

Sep 12

SFO3:26 pmSan Francisco

2h 13m

SEA5:39 pmSeattle/Tacoma Intl

Sep 14

SEA9:25 pmSeattle/Tacoma Intl

2h 15m

SFO11:40 pmSan Francisco

$180

Delta flights from United States to State of Washington

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

Delta

Aug 19

SFO10:40 amSan Francisco

2h 11m

SEA12:51 pmSeattle/Tacoma Intl

Aug 26

SEA5:51 pmSeattle/Tacoma Intl

2h 28m

SFO8:19 pmSan Francisco

$202

Delta

Sep 5

LAX5:51 pmLos Angeles Los Angeles

2h 39m

SEA8:30 pmSeattle/Tacoma Intl

Sep 6

SEA8:00 pmSeattle/Tacoma Intl

2h 50m

LAX10:50 pmLos Angeles Los Angeles

$222

Delta

Aug 28

LAX9:00 pmLos Angeles Los Angeles

2h 44m

SEA11:44 pmSeattle/Tacoma Intl

Aug 31

SEA7:55 pmSeattle/Tacoma Intl

2h 50m

LAX10:45 pmLos Angeles Los Angeles

$237

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

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

sáb. 9/5

5:05 pm-10:55 pm

1 stop5h 50m

Seattle/Tacoma Intl

mar. 9/8

8:30 am-4:55 pm

1 stop8h 25m

$167

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

mar. 8/18

8:56 pm-10:39 am

1 stop13h 43m

Seattle/Tacoma Intl

mié. 8/26

10:34 am-8:40 pm

1 stop10h 06m

$168

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

mar. 8/11

1:55 pm-4:14 pm

Nonstop2h 19m

Seattle/Tacoma Intl

sáb. 8/15

7:00 am-9:17 am

Nonstop2h 17m

$169

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

mié. 9/9

11:38 am-6:52 pm

1 stop7h 14m

Seattle/Tacoma Intl

sáb. 9/12

7:18 am-9:37 am

Nonstop2h 19m

$170

Quickest round-trip

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

jue. 9/24

7:00 am-9:08 am

Nonstop2h 08m

Seattle/Tacoma Intl

vie. 9/25

9:25 pm-11:40 pm

Nonstop2h 15m

$171

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

sáb. 9/12

1:55 pm-4:14 pm

Nonstop2h 19m

Seattle/Tacoma Intl

lun. 9/14

9:00 am-11:19 am

Nonstop2h 19m

$175

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles Los Angeles

mié. 9/2

8:02 am-10:56 am

Nonstop2h 54m

Seattle/Tacoma Intl

mar. 9/8

10:34 am-1:34 pm

Nonstop3h 00m

$199

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles Los Angeles

dom. 9/6

10:45 am-4:56 pm

1 stop6h 11m

Seattle/Tacoma Intl

vie. 9/11

11:06 am-2:01 pm

Nonstop2h 55m

$202

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

mar. 10/20

1:00 pm-9:15 pm

1 stop11h 15m

Seattle/Tacoma Intl

mar. 10/20

11:55 pm-8:19 am

Nonstop5h 24m

$298

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

mar. 9/8

2:45 pm-9:04 pm

1 stop9h 19m

Seattle/Tacoma Intl

mar. 9/8

11:44 pm-8:00 am

Nonstop5h 16m

$300

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 February is, on average, the cheapest month to fly to State of Washington from United States, with most prices found around $291. If you aren’t able to travel to State of Washington during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $295.

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 $288. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from United States to State of Washington for around $380.

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 $270. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $350 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 Spokane 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 $433 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 $373 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	$66
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 $66. The best round-trip flight deal from United States to State of Washington found on momondo in the last 72 hours is $119.

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 July 2026, there are 9 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 20.52% of the total bookings. Other popular models include Airbus A321neo with 15.85%, Airbus A321-100/200 with 11.57%, and Boeing 737-900 with 10.18%.

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 $45	Free Cancellation	Rating 7.3 682 reviews	Search Allegiant Air flights
Frontier	PriceFrom $54	Free Cancellation	Rating 5.6 2,769 reviews	Search Frontier flights
Delta	PriceFrom $69	Free Cancellation	Rating 7.8 8,482 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $78	Free Cancellation	Rating 7.8 2,821 reviews	Search Hawaiian Airlines flights
Southwest	PriceFrom $97	Free Cancellation	Rating 8.0 4,236 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $107	Free Cancellation	Rating 7.9 12,706 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $117	Free Cancellation	Rating 7.4 10,025 reviews	Search United Airlines flights
JetBlue	PriceFrom $133	Free Cancellation	Rating 7.1 3,021 reviews	Search JetBlue flights
Sun Country Air	PriceFrom $174	Free Cancellation	Rating 6.7 322 reviews	Search Sun Country Air flights
American Airlines	PriceFrom $174	Free Cancellation	Rating 7.1 11,841 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 $89

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 8/19. 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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Alaska Airlines flights from United States to State of Washington

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

Delta flights from United States to State of Washington

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

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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

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

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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