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Find cheap flights from Washington to the United States from $34

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington to the United States departing on 5/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 4/18
Thu 4/25

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Good to know

Low season

January

High season

March

Cheapest flight

$34
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Seattle to Ontario

FAQs for booking flights from Washington to the United States

  • How does KAYAK find such low prices on flights from Washington to the United States?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to the United States.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to the United States?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to the United States from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington to the United States?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to the United States with an airline and back to Washington with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to the United States?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to the United States from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Washington to the United States

Recent round-trip flight deals

4/23Tue
nonstopFrontier
2h 56mSEA-PHX
4/24Wed
nonstopFrontier
3h 25mPHX-SEA
$58
4/16Tue
nonstopFrontier
2h 56mSEA-PHX
4/23Tue
nonstopFrontier
3h 24mPHX-SEA
$63
4/13Sat
nonstopSpirit Airlines
2h 31mSEA-LAS
4/18Thu
nonstopSpirit Airlines
2h 47mLAS-SEA
$83
4/13Sat
nonstop
2h 32mSEA-LAS
4/26Fri
nonstop
2h 56mLAS-SEA
$85
4/21Sun
nonstopSpirit Airlines
2h 25mSEA-LAS
4/24Wed
nonstopSpirit Airlines
2h 45mLAS-SEA
$91
4/19Fri
1 stop
13h 38mSEA-PHX
4/24Wed
nonstop
3h 25mPHX-SEA
$93
4/17Wed
nonstopDelta
2h 45mSEA-ONT
4/24Wed
nonstopDelta
2h 55mONT-SEA
$137
4/10Wed
nonstopDelta
2h 45mSEA-ONT
4/17Wed
nonstopDelta
2h 55mONT-SEA
$147
4/10Wed
nonstopUnited Airlines
2h 42mSEA-LAX
4/19Fri
nonstopUnited Airlines
2h 58mLAX-SEA
$157
4/9Tue
nonstopUnited Airlines
2h 42mSEA-LAX
4/16Tue
nonstopUnited Airlines
2h 58mLAX-SEA
$167

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Recent one-way flight deals

5/18Sat
nonstopFrontier
2h 37mSEA-ONT
$34
7/24Wed
nonstopFrontier
2h 37mSEA-ONT
$39
5/1Wed
nonstopSpirit Airlines
2h 25mSEA-LAS
$40
4/16Tue
nonstopSpirit Airlines
2h 32mSEA-LAS
$46
4/21Sun
nonstopAlaska Airlines
2h 33mSEA-ONT
$69
4/24Wed
1 stop
10h 39mSEA-LAS
$72
4/2Tue
1 stop
15h 53mSEA-LAS
$75
4/14Sun
nonstopAlaska Airlines
2h 34mSEA-ONT
$79
5/21Tue
nonstopDelta
2h 52mSEA-PHX
$79
4/18Thu
nonstopDelta
2h 46mSEA-LAX
$99

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Last minute flights from Washington to the United States

Last minute flight, train and bus deals

3/23Sat
nonstop
2h 36mSEA-LAS
3/28Thu
nonstop
2h 51mLAS-SEA
$104
3/23Sat
nonstopFrontier
2h 36mSEA-LAS
3/28Thu
nonstopFrontier
2h 57mLAS-SEA
$107
3/19Tue
nonstopSpirit Airlines
2h 31mSEA-LAS
3/26Tue
nonstopSpirit Airlines
2h 51mLAS-SEA
$156
3/23Sat
nonstopSpirit Airlines
2h 30mSEA-LAS
3/28Thu
nonstopSpirit Airlines
2h 51mLAS-SEA
$159
3/23Sat
nonstopAmerican Airlines
2h 54mSEA-LAX
3/27Wed
nonstopAmerican Airlines
3h 00mLAX-SEA
$282
3/23Sat
nonstopAmerican Airlines
2h 54mSEA-LAX
3/27Wed
multi-stopAmerican Airlines
7h 37mLAX-SEA
$291
3/23Sat
nonstopDelta
2h 27mSEA-ONT
3/26Tue
nonstopDelta
2h 52mONT-SEA
$297
3/21Thu
nonstopUnited Airlines
2h 42mSEA-LAX
3/30Sat
nonstopUnited Airlines
2h 52mLAX-SEA
$297
3/21Thu
nonstopUnited Airlines
2h 42mSEA-LAX
3/28Thu
nonstopUnited Airlines
2h 52mLAX-SEA
$312
3/23Sat
nonstopDelta
2h 27mSEA-ONT
3/24Sun
nonstopDelta
2h 47mONT-SEA
$347

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Flights to the United States

Return flight deals:

United States - Washington

Cabin classes:

$234
$124
$113
$58

Browse destinations:

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