Find Cheap Flights from Portland to Costa Rica

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Portland to Costa Rica

(Round-trip)
Depart: Fri May 19 2017 Return: Thu May 25 2017 Trip spans 7 days
Delta
Delta
PDX
3:26p
LIR
1:20a
9h 54m
1 stop
LIR
3:51a
PDX
6:29p
14h 38m
1 stop
Depart: Thu Jun 8 2017 Return: Thu Jun 15 2017 Trip spans 8 days
United
United
PDX
8:27p
LIR
3:00p
18h 33m
1 stop
LIR
2:50a
PDX
8:41p
17h 51m
1 stop
Depart: Fri Jun 9 2017 Return: Wed Jun 14 2017 Trip spans 6 days
Major Airline
Major Airline
PDX
3:59p
LIR
4:18a
12h 19m
1 stop
LIR
10:50p
PDX
4:41p
17h 51m
1 stop
Depart: Wed Sep 6 2017 Return: Mon Sep 11 2017 Trip spans 6 days
American Airlines
American Airlines
PDX
6:15p
LIR
8:53a
14h 38m
3 stops
LIR
10:22a
PDX
7:51a
21h 29m
3 stops
Depart: Wed May 31 2017 Return: Fri Jun 2 2017 Trip spans 3 days
Alaska Airlines
Alaska Airlines
PDX
1:00a
SJO
10:10a
9h 10m
1 stop
SJO
12:10p
PDX
5:24a
17h 14m
1 stop
Depart: Tue Sep 5 2017 Return: Tue Sep 12 2017 Trip spans 8 days
Aeromexico
Aeromexico
PDX
2:15p
SJO
6:10p
27h 55m
2 stops
SJO
7:50a
PDX
3:07p
31h 17m
2 stops
Depart: Sat Jul 8 2017 Return: Sat Aug 5 2017 Trip spans 29 days
Copa Airlines
Copa Airlines
PDX
1:29p
SJO
3:17a
37h 48m
2 stops
SJO
1:40p
PDX
9:22p
31h 42m
2 stops
Depart: Mon May 29 2017 Return: Thu Jun 1 2017 Trip spans 4 days
Delta
Delta
PDX
6:55p
LIR
6:44a
11h 49m
1 stop
LIR
3:51a
PDX
3:47p
11h 56m
1 stop
Depart: Sat Sep 9 2017 Return: Tue Sep 19 2017 Trip spans 11 days
United
United
PDX
7:30p
LIR
6:30a
11h 00m
1 stop
LIR
8:30a
PDX
8:55p
12h 25m
1 stop
Depart: Mon Sep 11 2017 Return: Tue Sep 19 2017 Trip spans 9 days
Major Airline
Major Airline
PDX
2:00a
LIR
7:30a
5h 30m
1 stop
LIR
2:00a
PDX
9:30a
7h 30m
1 stop
Depart: Sun Sep 10 2017 Return: Mon Sep 18 2017 Trip spans 9 days
American Airlines
American Airlines
PDX
5:30p
LIR
8:53a
15h 23m
3 stops
LIR
10:22a
PDX
7:51a
21h 29m
3 stops
Depart: Tue Sep 12 2017 Return: Tue Sep 19 2017 Trip spans 8 days
United
United
PDX
7:30p
LIR
6:30a
11h 00m
1 stop
LIR
8:30a
PDX
8:55p
12h 25m
1 stop
Depart: Sat Oct 21 2017 Return: Fri Oct 27 2017 Trip spans 7 days
Major Airline
Major Airline
PDX
4:15a
LIR
4:03a
23h 48m
2 stops
LIR
4:30a
PDX
5:27a
24h 57m
2 stops
Depart: Tue Aug 29 2017 Return: Mon Sep 4 2017 Trip spans 7 days
American Airlines
American Airlines
PDX
6:15p
LIR
8:53a
14h 38m
3 stops
LIR
10:22a
PDX
11:45a
25h 23m
2 stops
Depart: Tue May 9 2017 Return: Wed May 17 2017 Trip spans 9 days
Alaska Airlines
Alaska Airlines
PDX
3:55p
SJO
10:10a
18h 15m
1 stop
SJO
12:10p
PDX
11:02p
10h 52m
1 stop
Depart: Sat May 20 2017 Return: Fri Jun 9 2017 Trip spans 21 days
United
United
PDX
8:18a
LIR
6:25a
22h 07m
2 stops
LIR
2:50a
PDX
9:44p
18h 54m
2 stops
Depart: Sat Aug 19 2017 Return: Sat Aug 26 2017 Trip spans 8 days
Major Airline
Major Airline
PDX
3:59p
LIR
1:39a
33h 40m
2 stops
LIR
8:10a
PDX
3:19a
19h 09m
2 stops
Depart: Wed Aug 2 2017 Return: Wed Aug 9 2017 Trip spans 8 days
American Airlines
American Airlines
PDX
7:05a
LIR
9:03a
25h 58m
2 stops
LIR
10:43a
PDX
7:43p
33h 00m
2 stops
Depart: Wed May 3 2017 Return: Wed May 10 2017 Trip spans 8 days
Aeromexico
Aeromexico
PDX
2:26a
SJO
6:17p
15h 51m
2 stops
SJO
7:50a
PDX
11:02p
15h 12m
2 stops
Depart: Wed May 10 2017 Return: Wed May 17 2017 Trip spans 8 days
Alaska Airlines
Alaska Airlines
PDX
1:00a
SJO
10:10a
9h 10m
1 stop
SJO
12:10p
PDX
11:02p
10h 52m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Portland
$435
Destination

Liberia
$435
San Jose
$520