$227+ Cheap flights from Portland, ME (PWM) to Costa Rica
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SJO
Aug 8 — Aug 151
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Costa Rica with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Costa Rica
Cheapest
Best
Last-minute
One-way
Cheapest flights from Portland to Costa RicaExplore the most affordable flight options available from Portland to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 9, 2026.
Explore the most affordable flight options available from Portland to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 9, 2026.
This American Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:24 pm
PWM
- SJO
2 stops18h 36m
American Airlines
Sat 10/176:00 am
SJO
- PWM
2 stops15h 41m
American Airlines
Deal found 7/7![American Airlines logo]()
$443
This Orbitz deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:30 am
PWM
- SJO
2 stops28h 20m
Multiple Airlines
Fri 10/304:15 pm
SJO
- PWM
2 stops29h 28m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$493
This United Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:43 pm
PWM
- LIR
1 stop17h 01m
United Airlines
Thu 11/122:20 pm
LIR
- PWM
2 stops23h 00m
United Airlines
Deal found 7/7![United Airlines logo]()
$507
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:00 am
PWM
- SJO
1 stop7h 38m
United Airlines
Sat 10/1712:44 pm
SJO
- PWM
1 stop18h 24m
United Airlines
Deal found 7/6![United Airlines logo]()
$546
This United Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:43 pm
PWM
- SJO
2 stops25h 56m
United Airlines
Thu 10/291:25 pm
SJO
- PWM
2 stops31h 58m
United Airlines
Deal found 7/4![United Airlines logo]()
$569
This Delta deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:00 am
PWM
- LIR
1 stop8h 00m
Delta
Mon 9/141:25 pm
LIR
- PWM
1 stop8h 05m
Delta
Deal found 7/4![Delta logo]()
$580
This Expedia deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/222:40 pm
PWM
- SJO
2 stops19h 50m
Multiple Airlines
Tue 7/281:50 am
SJO
- PWM
2 stops20h 26m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$594
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:00 am
PWM
- LIR
2 stops32h 10m
United Airlines
Wed 9/161:20 pm
LIR
- PWM
2 stops17h 48m
United Airlines
Deal found 7/8![United Airlines logo]()
$597
This United Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:00 am
PWM
- LIR
2 stops32h 10m
United Airlines
Mon 9/141:20 pm
LIR
- PWM
2 stops30h 03m
United Airlines
Deal found 7/4![United Airlines logo]()
$606
This FlightHub deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:00 am
PWM
- SJO
2 stops28h 30m
Multiple Airlines
Sat 10/177:45 pm
SJO
- PWM
2 stops45h 39m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$636
This American Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:31 pm
PWM
- LIR
2 stops21h 07m
American Airlines
Sat 8/292:15 pm
LIR
- PWM
2 stops19h 23m
American Airlines
Deal found 7/7![American Airlines logo]()
$637
This American Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/193:53 pm
PWM
- LIR
2 stops21h 23m
American Airlines
Thu 11/261:21 pm
LIR
- PWM
2 stops21h 28m
American Airlines
Deal found 7/6![American Airlines logo]()
$791
Best flights from Portland to Costa RicaDiscover carefully curated flight deals from Portland to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 9, 2026.
Discover carefully curated flight deals from Portland to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 9, 2026.
This American Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:24 pm
PWM
- SJO
2 stops18h 36m
American Airlines
Sat 10/176:00 am
SJO
- PWM
2 stops15h 41m
American Airlines
Deal found 7/7![American Airlines logo]()
$443
This Orbitz deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:30 am
PWM
- SJO
2 stops28h 20m
Multiple Airlines
Fri 10/304:15 pm
SJO
- PWM
2 stops29h 28m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$493
This United Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/98:47 am
PWM
- LIR
2 stops27h 57m
United Airlines
Thu 11/122:20 pm
LIR
- PWM
2 stops23h 00m
United Airlines
Deal found 7/7![United Airlines logo]()
$507
This United Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:00 am
PWM
- SJO
1 stop7h 38m
United Airlines
Sat 10/1712:44 pm
SJO
- PWM
1 stop18h 24m
United Airlines
Deal found 7/7![United Airlines logo]()
$546
This United Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:43 pm
PWM
- SJO
2 stops25h 56m
United Airlines
Thu 10/291:25 pm
SJO
- PWM
2 stops31h 58m
United Airlines
Deal found 7/4![United Airlines logo]()
$569
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:00 am
PWM
- LIR
2 stops32h 10m
United Airlines
Wed 9/161:20 pm
LIR
- PWM
2 stops17h 48m
United Airlines
Deal found 7/8![United Airlines logo]()
$597
Last-minute flights from Portland to Costa RicaDiscover last-minute flight deals from Portland to Costa Rica. Data last updated July 9, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Costa Rica. Data last updated July 9, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:00 am
PWM
- SJO
2 stops30h 11m
United Airlines
Wed 7/2212:30 am
SJO
- PWM
2 stops21h 21m
United Airlines
Deal found 7/8![United Airlines logo]()
$724
This Travelocity deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/202:40 pm
PWM
- SJO
3 stops47h 05m
Multiple Airlines
Thu 7/2312:40 pm
SJO
- PWM
3 stops33h 36m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$884
This Expedia deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/222:40 pm
PWM
- SJO
2 stops19h 50m
Multiple Airlines
Tue 7/281:50 am
SJO
- PWM
2 stops20h 26m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$594
This deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/610:55 am
PWM
- SJO
1 stop11h 24m
United Airlines
Tue 8/1812:44 pm
SJO
- PWM
1 stop8h 48m
United Airlines
Deal found 7/7![United Airlines logo]()
$1,413
This American Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:31 pm
PWM
- LIR
2 stops21h 07m
American Airlines
Sat 8/292:15 pm
LIR
- PWM
2 stops19h 23m
American Airlines
Deal found 7/7![American Airlines logo]()
$637
This BusinessClass deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:41 am
PWM
- LIR
1 stop8h 29m
JetBlue
Sat 8/292:30 pm
LIR
- PWM
1 stop20h 00m
JetBlue
Deal found 7/7![JetBlue logo]()
$1,384
This United Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:03 pm
PWM
- LIR
2 stops21h 07m
United Airlines
Sat 8/291:20 pm
LIR
- PWM
3 stops18h 44m
United Airlines
Deal found 7/7![United Airlines logo]()
$3,284
One-way flights from Portland to Costa RicaSearch for one-way flight options from Portland to Costa Rica. Find affordable one-way fares based on user searches. Data last updated July 9, 2026.
Search for one-way flight options from Portland to Costa Rica. Find affordable one-way fares based on user searches. Data last updated July 9, 2026.
This KAYAK deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:00 am
PWM
- LIR
1 stop8h 40m
JetBlue
Deal found 7/9![JetBlue logo]()
$227
This United Airlines deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:35 pm
PWM
- LIR
2 stops18h 35m
United Airlines
Deal found 7/9![United Airlines logo]()
$235
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:15 am
PWM
- LIR
2 stops32h 55m
United Airlines
Deal found 7/6![United Airlines logo]()
$546
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/105:15 am
PWM
- LIR
2 stops32h 55m
United Airlines
Deal found 7/6![United Airlines logo]()
$550
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:00 am
PWM
- LIR
2 stops56h 10m
United Airlines
Deal found 7/6![United Airlines logo]()
$552
This BusinessClass deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/105:15 am
PWM
- LIR
2 stops32h 55m
Azul
Deal found 7/8![Azul logo]()
$559
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/186:30 am
PWM
- SJO
2 stops31h 00m
Aeromexico
Deal found 7/8![Aeromexico logo]()
$621
This BusinessClass deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:00 am
PWM
- LIR
2 stops9h 18m
GOL
Deal found 7/6![GOL logo]()
$621
This BusinessClass deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:09 pm
PWM
- LIR
2 stops22h 34m
GOL
Deal found 7/6![GOL logo]()
$626
This BusinessClass deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:24 pm
PWM
- LIR
2 stops19h 54m
GOL
Deal found 7/6![GOL logo]()
$627
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/115:15 am
PWM
- LIR
2 stops32h 55m
United Airlines
Deal found 7/6![United Airlines logo]()
$726
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/65:15 am
PWM
- LIR
2 stops32h 55m
United Airlines
Deal found 7/6![United Airlines logo]()
$737
Find flight deals from Portland to Costa Rica
Keep the following information in mind while searching for Portland to Costa Rica flight deals. Data was last updated July 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $443 (American Airlines) |
One-way from | $227 (KAYAK) |
Popular in | December |
Cheapest in | July |
Average price | $178 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to Costa Rica 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, Cheapflights users made 2,558,603 searches. Data last updated July 9, 2026.
Use the filters below to find and compare flights from Portland to Costa Rica that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandSan José
PWM - SJO
PWMSJO
Portland
Fri 10/9
7:24 pm-12:00 pm
2 stops18h 36m
San José Juan Santamaria Intl
Sat 10/17
6:00 am-11:41 pm
2 stops15h 41m
$443
PortlandSan José
PWM - SJO
PWMSJO
Portland
Mon 10/26
6:30 am-8:50 am
2 stops28h 20m
San José Juan Santamaria Intl
Fri 10/30
4:15 pm-11:43 pm
2 stops29h 28m
$493
PortlandLiberia
PWM - LIR
PWMLIR
Portland
Mon 11/9
8:47 am-11:44 am
2 stops27h 57m
Liberia
Thu 11/12
2:20 pm-2:20 pm
2 stops23h 00m
$507
Quickest round-trip
PortlandSan José
PWM - SJO
PWMSJO
Portland
Fri 10/9
6:00 am-11:38 am
1 stop7h 38m
San José Juan Santamaria Intl
Sat 10/17
12:44 pm-9:08 am
1 stop18h 24m
$546
PortlandSan José
PWM - SJO
PWMSJO
Portland
Mon 10/26
7:43 pm-7:39 pm
2 stops25h 56m
San José Juan Santamaria Intl
Thu 10/29
1:25 pm-11:23 pm
2 stops31h 58m
$569
PortlandLiberia
PWM - LIR
PWMLIR
Portland
Sat 9/12
6:00 am-12:10 pm
2 stops32h 10m
Liberia
Wed 9/16
1:20 pm-9:08 am
2 stops17h 48m
$597
Cheapest one-way
Quickest one-way
PortlandLiberia
PWM - LIR
PWMLIR
Portland
Thu 8/13
6:00 am-12:40 pm
1 stop8h 40m
$227
PortlandLiberia
PWM - LIR
PWMLIR
Portland
Thu 8/13
7:35 pm-12:10 pm
2 stops18h 35m
$235
PortlandLiberia
PWM - LIR
PWMLIR
Portland
Sat 10/10
5:15 am-12:10 pm
2 stops32h 55m
$550
PortlandSan José
PWM - SJO
PWMSJO
Portland
Fri 12/18
6:30 am-12:30 pm
2 stops31h 00m
$621
Showing 1-10 of 15 resultsSorted by cheapest first
Best time to book a flight from Portland to Costa Rica
Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Portland with our price prediction graph.
PWM-LIR
PWM-SJO
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Portland to Costa Rica
PWM-CR0
PWM-LIR
PWM-SJO
What is the cheapest month to book a flight from Portland, Maine to Costa Rica?
Currently, July is the cheapest month in which you can book a flight from Portland, Maine to Costa Rica (average of $136). Flying from Portland, Maine to Costa Rica in August is currently the most expensive (average of $553). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Costa Rica
Get insights into the airlines that provide service to Costa Rica. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Costa Rica. Reviews last updated July 9, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Portland to Costa Rica have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Portland to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Portland to Costa Rica
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Costa Rica by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to Costa Rica by cabin class
Find flights from Portland to Costa Rica, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Costa Rica flights
Browse other Portland and Costa Rica flight options. Last updated on July 9, 2026.
Popular flight searches
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Top 5 airlines flying from Portland to Costa Rica
Discover the top 5 airlines that operate flights from Portland to Costa Rica. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$236 | Average$314 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$251 | Average$703 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$274 | Average$547 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$299 | Average$663 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$577 | Average$798 | FlexibilityNo cancel fee | On-time63% |