Find Deals on 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
Students
under 26
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Portland to Costa Rica

(Round-trip)
Depart: Mon Feb 6 2017 Return: Tue Feb 7 2017 Trip spans 2 days
United
United
PDX
1:00a
LIR
2:05p
13h 05m
1 stop
LIR
2:50a
PDX
6:42p
15h 52m
1 stop
Depart: Tue Jan 3 2017 Return: Tue Jan 17 2017 Trip spans 15 days
Delta
Delta
PDX
2:40p
LIR
12:27a
9h 47m
1 stop
LIR
3:32a
PDX
4:13p
12h 41m
1 stop
Depart: Thu Jan 5 2017 Return: Sun Jan 15 2017 Trip spans 11 days
Major Airline
Major Airline
PDX
12:06p
LIR
2:30a
14h 24m
1 stop
LIR
5:26a
PDX
3:59p
34h 33m
1 stop
Depart: Mon Jan 30 2017 Return: Tue Feb 14 2017 Trip spans 16 days
Alaska Airlines
Alaska Airlines
PDX
2:55p
LIR
8:56a
18h 01m
1 stop
LIR
12:00p
PDX
7:25a
19h 25m
1 stop
Depart: Sat Jan 21 2017 Return: Sat Jan 28 2017 Trip spans 8 days
American Airlines
American Airlines
PDX
1:15p
LIR
7:55a
18h 40m
2 stops
LIR
10:40a
PDX
8:13a
21h 33m
2 stops
Depart: Tue Jun 6 2017 Return: Sun Jun 11 2017 Trip spans 6 days
Avianca
Avianca
PDX
2:40p
SJO
11:05a
20h 25m
2 stops
SJO
8:20a
PDX
4:40a
20h 20m
2 stops
Depart: Fri Jan 27 2017 Return: Sat Jan 28 2017 Trip spans 2 days
United
United
PDX
8:25a
LIR
5:30a
21h 05m
2 stops
LIR
11:00a
PDX
11:48a
24h 48m
2 stops
Depart: Wed Jan 4 2017 Return: Tue Jan 17 2017 Trip spans 14 days
Delta
Delta
PDX
11:10a
LIR
12:27a
13h 17m
1 stop
LIR
3:32a
PDX
7:47p
16h 15m
1 stop
Depart: Sat Mar 4 2017 Return: Tue Mar 14 2017 Trip spans 10 days
Alaska Airlines
Alaska Airlines
PDX
2:55p
LIR
8:58a
18h 03m
1 stop
LIR
12:10p
PDX
7:43a
19h 33m
1 stop
Depart: Sun Feb 5 2017 Return: Mon Feb 13 2017 Trip spans 9 days
American Airlines
American Airlines
PDX
5:39p
LIR
6:34a
12h 55m
2 stops
LIR
10:45a
PDX
5:49a
19h 04m
2 stops
Depart: Mon Mar 20 2017 Return: Thu Mar 23 2017 Trip spans 4 days
Major Airline
Major Airline
PDX
11:55a
LIR
6:08a
18h 13m
1 stop
LIR
8:10a
PDX
7:03p
10h 53m
1 stop
Depart: Tue Mar 7 2017 Return: Wed Mar 8 2017 Trip spans 2 days
United
United
PDX
12:45a
LIR
2:05p
13h 20m
1 stop
LIR
2:50a
PDX
6:14p
15h 24m
2 stops
Depart: Sat Jan 7 2017 Return: Tue Jan 17 2017 Trip spans 11 days
Delta
Delta
PDX
1:00p
LIR
12:20a
11h 20m
1 stop
LIR
3:32a
PDX
4:13p
12h 41m
1 stop
Depart: Mon Mar 13 2017 Return: Tue Mar 28 2017 Trip spans 16 days
Alaska Airlines
Alaska Airlines
PDX
2:25p
LIR
10:08a
19h 43m
1 stop
LIR
12:10p
PDX
11:03p
10h 53m
1 stop
Depart: Mon Jan 2 2017 Return: Mon Jan 16 2017 Trip spans 15 days
American Airlines
American Airlines
PDX
7:15p
LIR
8:05a
12h 50m
1 stop
LIR
10:45a
PDX
3:41p
28h 56m
1 stop
Depart: Fri Dec 30 2016 Return: Tue Jan 10 2017 Trip spans 12 days
United
United
PDX
12:59p
LIR
11:05p
10h 06m
1 stop
LIR
8:35a
PDX
6:42p
10h 07m
1 stop
Depart: Mon Jan 9 2017 Return: Tue Jan 17 2017 Trip spans 9 days
Delta
Delta
PDX
10:46a
LIR
12:20a
13h 34m
1 stop
LIR
3:32a
PDX
4:13p
12h 41m
1 stop
Depart: Sat May 6 2017 Return: Sun May 14 2017 Trip spans 9 days
Alaska Airlines
Alaska Airlines
PDX
4:30p
LIR
10:08a
17h 38m
2 stops
LIR
12:10p
PDX
4:50a
16h 40m
2 stops
Depart: Fri Jan 6 2017 Return: Sat Jan 14 2017 Trip spans 9 days
United
United
PDX
10:10a
LIR
11:05p
12h 55m
1 stop
LIR
7:30a
PDX
6:15p
10h 45m
1 stop
Depart: Mon Jan 16 2017 Return: Thu Jan 19 2017 Trip spans 4 days
Delta
Delta
PDX
3:06p
LIR
12:20a
9h 14m
1 stop
LIR
3:32a
PDX
4:13p
12h 41m
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,
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Airports
Origin

Portland
$382
Destination

Liberia
$382
San Jose
$568