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Cheap flights from the United States to Washington from $74

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 10/29. 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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0 bags

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Find the cheapest flights from the United States to Washington

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

Enter your travel dates to find the best prices.
Alaska Airlines Logo
4:03 pm - 6:54 pmONT-SEA
2h 51mnonstop
Alaska Airlines Logo
9:20 pm - 11:56 pmSEA-ONT
2h 36mnonstop
$118Alaska Airlines
Find Deal
Sat, Jan 10 - Mon, Jan 12
Delta Logo
11:48 am - 2:45 pmONT-SEA
2h 57mnonstop
Delta Logo
8:17 am - 11:08 amSEA-ONT
2h 51mnonstop
$119Delta
Find Deal
Thu, Nov 6 - Sun, Nov 9
Frontier Logo
6:01 pm - 8:58 pmONT-SEA
2h 57mnonstop
Frontier Logo
2:17 pm - 4:57 pmSEA-ONT
2h 40mnonstop
$121Frontier
Find Deal
Sun, Nov 23 - Mon, Dec 1
Frontier Logo
6:00 am - 6:32 pmONT-SEA
12h 32m1 stop
Frontier Logo
12:58 pm - 11:50 pmSEA-ONT
10h 52m1 stop
$122Frontier
Find Deal
Thu, Nov 13 - Sat, Nov 15
Delta Logo
6:45 am - 9:49 amONT-SEA
3h 04mnonstop
Delta Logo
7:12 pm - 11:52 pmSEA-ONT
4h 40m1 stop
$129Delta
Find Deal
Wed, Nov 12 - Mon, Nov 17
Alaska Airlines Logo
9:40 pm - 11:55 pmSFO-SEA
2h 15mnonstop
Alaska Airlines Logo
7:00 am - 9:11 amSEA-SFO
2h 11mnonstop
$134Alaska Airlines
Find Deal
Fri, Feb 13 - Tue, Feb 17
United Airlines Logo
4:45 pm - 7:55 pmLAX-SEA
3h 10mnonstop
United Airlines Logo
9:00 am - 11:59 amSEA-LAX
2h 59mnonstop
$139United Airlines
Find Deal
Wed, Jan 7 - Sat, Jan 10
United Airlines Logo
8:40 am - 11:39 amLAX-SEA
2h 59mnonstop
United Airlines Logo
12:41 pm - 3:32 pmSEA-LAX
2h 51mnonstop
$152United Airlines
Find Deal
Sat, Nov 15 - Sat, Nov 15
American Airlines Logo
3:18 pm - 6:20 pmLAX-SEA
3h 02mnonstop
American Airlines Logo
6:05 am - 9:02 amSEA-LAX
2h 57mnonstop
$167American Airlines
Find Deal
Sat, Dec 13 - Wed, Dec 17
American Airlines Logo
8:25 pm - 11:22 pmLAX-SEA
2h 57mnonstop
American Airlines Logo
7:04 pm - 9:55 pmSEA-LAX
2h 51mnonstop
$168American Airlines
Find Deal
Wed, Feb 25 - Thu, Mar 5

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
Jan 10
ONT4:03 pmOntario
2h 51m
SEA6:54 pmSeattle/Tacoma Intl
Jan 12
SEA9:20 pmSeattle/Tacoma Intl
2h 36m
ONT11:56 pmOntario
$118
Find similar
Alaska Airlines
Feb 13
SFO9:40 pmSan Francisco
2h 15m
SEA11:55 pmSeattle/Tacoma Intl
Feb 17
SEA7:00 amSeattle/Tacoma Intl
2h 11m
SFO9:11 amSan Francisco
$134
Find similar
Alaska Airlines
Nov 13
SFO7:00 amSan Francisco
5h 44m
1 stop
SEA12:44 pmSeattle/Tacoma Intl
Nov 15
SEA5:57 pmSeattle/Tacoma Intl
2h 16m
SFO8:13 pmSan Francisco
$135
Find similar

Delta flights from United States to State of Washington

Our best Delta deals on United States to State of Washington flight tickets
Delta
Nov 6
ONT11:48 amOntario
2h 57m
SEA2:45 pmSeattle/Tacoma Intl
Nov 9
SEA8:17 amSeattle/Tacoma Intl
2h 51m
ONT11:08 amOntario
$119
Find similar
Delta
Nov 12
ONT6:45 amOntario
3h 04m
SEA9:49 amSeattle/Tacoma Intl
Nov 17
SEA7:12 pmSeattle/Tacoma Intl
4h 40m
1 stop
ONT11:52 pmOntario
$129
Find similar
Delta
Nov 20
SFO6:00 amSan Francisco
2h 23m
SEA8:23 amSeattle/Tacoma Intl
Nov 24
SEA7:10 amSeattle/Tacoma Intl
2h 25m
SFO9:35 amSan Francisco
$137
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from United States to State of Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 16, 2025.
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

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sat 1/10

4:03 pm-6:54 pm

Nonstop2h 51m

Seattle/Tacoma Intl

Mon 1/12

9:20 pm-11:56 pm

Nonstop2h 36m

$118

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Thu 11/6

11:48 am-2:45 pm

Nonstop2h 57m

Seattle/Tacoma Intl

Sun 11/9

8:17 am-11:08 am

Nonstop2h 51m

$119

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Sun 11/23

6:01 pm-8:58 pm

Nonstop2h 57m

Seattle/Tacoma Intl

Mon 12/1

2:17 pm-4:57 pm

Nonstop2h 40m

$121

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Thu 11/13

6:00 am-6:32 pm

1 stop12h 32m

Seattle/Tacoma Intl

Sat 11/15

12:58 pm-11:50 pm

1 stop10h 52m

$122

OntarioSeattle

ONT - SEA

ONTSEA

Ontario

Wed 11/12

6:45 am-9:49 am

Nonstop3h 04m

Seattle/Tacoma Intl

Mon 11/17

7:12 pm-11:52 pm

1 stop4h 40m

$129

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Fri 2/13

9:40 pm-11:55 pm

Nonstop2h 15m

Seattle/Tacoma Intl

Tue 2/17

7:00 am-9:11 am

Nonstop2h 11m

$134

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Wed 1/7

4:45 pm-7:55 pm

Nonstop3h 10m

Seattle/Tacoma Intl

Sat 1/10

9:00 am-11:59 am

Nonstop2h 59m

$139

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 11/15

8:40 am-11:39 am

Nonstop2h 59m

Seattle/Tacoma Intl

Sat 11/15

12:41 pm-3:32 pm

Nonstop2h 51m

$152

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 12/13

3:18 pm-6:20 pm

Nonstop3h 02m

Seattle/Tacoma Intl

Wed 12/17

6:05 am-9:02 am

Nonstop2h 57m

$167

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Wed 2/25

8:25 pm-11:22 pm

Nonstop2h 57m

Seattle/Tacoma Intl

Thu 3/5

7:04 pm-9:55 pm

Nonstop2h 51m

$168

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington from

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?

The month of September is, on average, the cheapest month to fly to State of Washington from United States, with most prices found around $317. If you aren’t able to travel to State of Washington during the month of September, then flying in October 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 $357.

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 $241. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $329 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 Los Angeles 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 $417 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 $348 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

$53

Fastest flight time

2h 10m

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 $53. The best round-trip flight deal from United States to State of Washington found on momondo in the last 72 hours is $90.
The fastest flight from United States to State of Washington takes 2h 10m
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?

  • 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?

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 AirPriceFrom $37Free CancellationRating
7.2
693 reviews
Search Allegiant Air flights
FrontierPriceFrom $49Free CancellationRating
5.8
3,137 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $58Free CancellationRating
6.3
8,096 reviews
Search Spirit Airlines flights
Hawaiian AirlinesPriceFrom $78Free CancellationRating
7.8
2,780 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $97Free CancellationRating
7.9
7,979 reviews
Search Delta flights
Alaska AirlinesPriceFrom $129Free CancellationRating
8.0
11,095 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $131Free CancellationRating
7.4
8,979 reviews
Search United Airlines flights
JetBluePriceFrom $133Free CancellationRating
7.2
2,908 reviews
Search JetBlue flights
SouthwestPriceFrom $136Free CancellationRating
8.0
4,239 reviews
Search Southwest flights
Sun Country AirPriceFrom $167Free CancellationRating
6.9
335 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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