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Find cheap flights from Washington to Costa Rica from $143

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 Costa Rica departing on 6/11. 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
Sat 6/15
Sat 6/22

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In the last 7 days travelers have searched 42,211,976 times on KAYAK, and here is why:

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Good to know

Low season

September

High season

December

Cheapest flight

$143
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 27% increase in price.
Flight from Seattle to San José

FAQs for booking flights from Washington to Costa Rica

  • How does KAYAK find such low prices on flights from Washington to Costa Rica?

    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 Costa Rica.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Costa Rica 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 Costa Rica?

    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 Costa Rica 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 Costa Rica?

    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 Costa Rica 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 Costa Rica

Recent round-trip flight deals

5/28Tue
2 stops
33h 47mPDX-SJO
6/4Tue
1 stop
21h 14mSJO-PDX
$347
9/23Mon
2 stops
20h 45mPDX-SJO
9/27Fri
2 stops
27h 37mSJO-PDX
$350
6/5Wed
2 stopsSpirit Airlines
17h 49mPDX-SJO
6/11Tue
2 stopsSpirit Airlines
22h 54mSJO-PDX
$359
8/11Sun
2 stopsAmerican Airlines
12h 02mPDX-SJO
8/15Thu
1 stopAmerican Airlines
21h 45mSJO-PDX
$384
10/14Mon
1 stopAmerican Airlines
12h 13mSEA-LIR
10/25Fri
1 stopAmerican Airlines
20h 22mLIR-SEA
$389
8/19Mon
2 stopsAmerican Airlines
12h 02mPDX-SJO
8/26Mon
1 stopAmerican Airlines
18h 28mSJO-PDX
$395
5/29Wed
2 stopsSpirit Airlines
34h 06mSEA-SJO
6/1Sat
2 stopsSpirit Airlines
24h 09mSJO-SEA
$396
9/18Wed
2 stopsAvianca
25h 25mSEA-SJO
9/25Wed
2 stopsAvianca
18h 12mSJO-SEA
$409
7/25Thu
1 stopDelta
17h 33mSEA-SJO
8/8Thu
1 stopDelta
20h 41mSJO-SEA
$413
7/23Tue
1 stopDelta
22h 17mSEA-SJO
8/8Thu
1 stopDelta
20h 41mSJO-SEA
$424

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Recent one-way flight deals

6/11Tue
2 stopsSpirit Airlines
13h 20mSEA-SJO
$143
6/10Mon
3 stops
25h 20mSEA-SJO
$153
6/6Thu
1 stopAvianca
14h 40mSEA-SJO
$181
9/1Sun
2 stopsAvianca
25h 25mSEA-SJO
$188
8/13Tue
1 stopDelta
18h 58mSEA-SJO
$210
8/13Tue
1 stopAmerican Airlines
12h 22mSEA-SJO
$213
8/12Mon
1 stopDelta
17h 48mSEA-SJO
$214
8/4Sun
1 stopAmerican Airlines
13h 10mPDX-SJO
$219
5/26Sun
1 stopUnited Airlines
9h 03mPDX-LIR
$221
6/9Sun
1 stopUnited Airlines
21h 49mSEA-SJO
$237

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Last minute flights from Washington to Costa Rica

Last minute flight, train and bus deals

5/21Tue
multi-stopCopa Airlines
14h 26mSEA-SJO
5/28Tue
multi-stopCopa Airlines
29h 01mSJO-SEA
$529
5/19Sun
multi-stopSpirit Airlines
22h 11mSEA-SJO
6/1Sat
multi-stopSpirit Airlines
24h 09mSJO-SEA
$561
5/21Tue
multi-stopUnited Airlines
20h 58mSEA-LIR
5/28Tue
multi-stopUnited Airlines
10h 31mLIR-SEA
$581
5/21Tue
multi-stopUnited Airlines
22h 20mSEA-LIR
5/28Tue
multi-stopUnited Airlines
12h 01mLIR-SEA
$608
5/20Mon
multi-stopAmerican Airlines
10h 55mSEA-LIR
5/28Tue
multi-stopAmerican Airlines
11h 41mLIR-SEA
$619
5/17Fri
multi-stopAmerican Airlines
12h 31mSEA-SJO
5/24Fri
multi-stopAmerican Airlines
18h 59mSJO-SEA
$659
5/17Fri
multi-stopDelta
31h 30mSEA-SJO
5/22Wed
multi-stopDelta
16h 31mSJO-SEA
$666
5/19Sun
multi-stop
14h 11mSEA-SJO
5/30Thu
multi-stop
21h 13mSJO-SEA
$670
5/19Sun
multi-stop
14h 11mSEA-SJO
6/1Sat
multi-stop
24h 09mSJO-SEA
$675
5/19Sun
multi-stopDelta
13h 13mSEA-SJO
5/26Sun
multi-stopDelta
16h 31mSJO-SEA
$696

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Flights to Costa Rica

Return flight deals:

Costa Rica - Washington

Cabin classes: