PDXPortland International Airport
Portland, United States
LIRDaniel Oduber Quirós International Airport
Liberia, Costa Rica
$660 USD
-30%$461 USD
Verified Nov 30, 2025 at 8:05 AMFair Availability
31% of dates checked are available within 10% of the lowest price
Sunday, January 18th, 2026
Outbound Flights
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22h 18m·2 stops
$551 USD
PDXJan 18 15:50
→SFOJan 18 17:47
UA 2332Boeing 737
3h 36m layover
SFOJan 18 21:23
→DENJan 19 00:59
UA 301Boeing 737MAX 9 Passenger
8h 58m layover
DENJan 19 09:57
→LIRJan 19 16:08
UA 1917Boeing 737MAX 9 Passenger
19h 20m·2 stops
$557 USDPDXJan 18 15:50
→SFOJan 18 17:47
UA 2332Boeing 737
6h 56m layover·Overnight
SFOJan 19 00:43
→IAHJan 19 06:29
UA 512Boeing 737MAX 9 Passenger
3h 7m layover
IAHJan 19 09:36
→LIRJan 19 13:10
UA 1512Boeing 737MAX 9 Passenger
22h 23m·1 stop
$573 USDPDXJan 18 15:45
→DENJan 18 19:18
UA 1787Boeing 737MAX 9 Passenger
14h 39m layover·Overnight
DENJan 19 09:57
→LIRJan 19 16:08
UA 1917Boeing 737MAX 9 Passenger
28h 10m·1 stop
$582 USDPDXJan 18 07:00
→IAHJan 18 13:12
UA 462Boeing 737MAX 8 Passenger
20h 24m layover·Overnight
IAHJan 19 09:36
→LIRJan 19 13:10
UA 1512Boeing 737MAX 9 Passenger
19h 10m·2 stops
$649 USDPDXJan 18 15:45
→DENJan 18 19:18
UA 1787Boeing 737MAX 9 Passenger
1h 7m layover
DENJan 18 20:25
→ORDJan 18 23:59
UA 377Airbus A321neo
7h 50m layover·Overnight
ORDJan 19 07:49
→LIRJan 19 12:55
UA 1120Boeing 737
27h 55m·1 stop
$911 USDPDXJan 18 07:00
→ORDJan 18 13:05
UA 2306Boeing 737MAX 9 Passenger
18h 44m layover·Overnight
ORDJan 19 07:49
→LIRJan 19 12:55
UA 1120Boeing 737
24h 8m·1 stop
$1,136 USDPDXJan 18 10:47
→ORDJan 18 16:48
UA 2321Boeing 737
15h 1m layover·Overnight
ORDJan 19 07:49
→LIRJan 19 12:55
UA 1120Boeing 737
9h 37m·1 stop
$1,667 USDPDXJan 18 07:00
→IAHJan 18 13:12
UA 462Boeing 737MAX 8 Passenger
1h 53m layover
IAHJan 18 15:05
→LIRJan 18 18:37
UA 1737Boeing 737