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Find cheap flights from Washington to Costa Rica from $163

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 8/25. 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
Mon 7/1
Mon 7/8

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In the last 7 days travelers have searched 42,787,818 times on KAYAK, and here is why:

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Good to know

Low season

September

High season

December

Cheapest flight

$163
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 26% increase in price.
Flight from Portland 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

8/25Sun
2 stopsSpirit Airlines
22h 35mPDX-SJO
9/10Tue
2 stopsSpirit Airlines
24h 50mSJO-PDX
$341
8/19Mon
2 stopsSpirit Airlines
23h 16mPDX-SJO
8/27Tue
2 stopsSpirit Airlines
20h 43mSJO-PDX
$359
10/29Tue
1 stopDelta
18h 58mSEA-SJO
11/13Wed
1 stopDelta
12h 53mSJO-SEA
$368
8/19Mon
1 stopAmerican Airlines
13h 05mPDX-SJO
8/27Tue
1 stopAmerican Airlines
9h 48mSJO-PDX
$370
11/2Sat
1 stopDelta
13h 58mSEA-SJO
11/12Tue
1 stopDelta
28h 33mSJO-SEA
$373
8/19Mon
2 stopsAmerican Airlines
12h 02mPDX-SJO
8/27Tue
1 stopAmerican Airlines
9h 48mSJO-PDX
$375
8/25Sun
2 stops
14h 26mPDX-SJO
9/10Tue
2 stops
24h 50mSJO-PDX
$406
9/16Mon
3 stops
41h 32mSEA-SJO
9/23Mon
3 stops
24h 12mSJO-SEA
$409
10/29Tue
2 stopsUnited Airlines
24h 47mSEA-SJO
11/13Wed
1 stopUnited Airlines
12h 30mSJO-SEA
$413
10/31Thu
2 stopsUnited Airlines
20h 35mSEA-SJO
11/14Thu
2 stopsUnited Airlines
17h 00mSJO-SEA
$433

Search by stops

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Recent one-way flight deals

8/25Sun
2 stopsSpirit Airlines
34h 41mPDX-SJO
$163
9/7Sat
2 stops
21h 25mSEA-SJO
$164
8/13Tue
1 stopAmerican Airlines
19h 54mSEA-SJO
$178
8/25Sun
1 stopDelta
12h 58mPDX-SJO
$184
7/29Mon
1 stopAmerican Airlines
14h 10mPDX-LIR
$186
8/15Thu
1 stopDelta
17h 38mSEA-SJO
$198
9/1Sun
1 stopUnited Airlines
11h 27mSEA-SJO
$208
9/1Sun
2 stopsUnited Airlines
28h 41mSEA-SJO
$214
8/12Mon
2 stopsAlaska Airlines
18h 23mSEA-LIR
$246
7/18Thu
1 stopAlaska Airlines
13h 45mSEA-LIR
$292

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Last minute flights from Washington to Costa Rica

Last minute flight, train and bus deals

6/5Wed
multi-stopAmerican Airlines
13h 59mPDX-LIR
6/9Sun
multi-stopAmerican Airlines
11h 50mLIR-PDX
$473
6/5Wed
multi-stopAmerican Airlines
13h 59mPDX-LIR
6/9Sun
multi-stopAmerican Airlines
21h 13mLIR-PDX
$501
6/4Tue
multi-stopSpirit Airlines
21h 20mPDX-SJO
6/10Mon
multi-stopSpirit Airlines
23h 36mSJO-PDX
$565
6/5Wed
multi-stopUnited Airlines
9h 25mPDX-LIR
6/8Sat
multi-stopUnited Airlines
51h 08mLIR-PDX
$574
6/4Tue
multi-stopSpirit Airlines
21h 20mPDX-SJO
6/6Thu
multi-stopSpirit Airlines
25h 37mSJO-PDX
$585
6/4Tue
multi-stopDelta
16h 52mGEG-SJO
6/10Mon
multi-stopDelta
15h 47mSJO-GEG
$657
6/4Tue
multi-stop
21h 20mPDX-SJO
6/6Thu
multi-stop
27h 29mSJO-PDX
$668
6/4Tue
multi-stopUnited Airlines
10h 34mSEA-SJO
6/14Fri
multi-stopUnited Airlines
18h 13mSJO-SEA
$716
6/4Tue
multi-stop
16h 55mPDX-SJO
6/6Thu
multi-stop
27h 29mSJO-PDX
$794
6/4Tue
multi-stopDelta
18h 33mPDX-SJO
6/12Wed
multi-stopDelta
17h 54mSJO-PDX
$1,071

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Flights to Costa Rica

Return flight deals:

Costa Rica - Washington

Cabin classes: