Leave for SJO with sufficient time to clear security. Self-check kiosks and baggage drop-off are available, but arrive at least 3 hours before your flight.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $167 (Cheapflightsfares) |
One-way from | $106 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $252 |
Good round-trip deal | $445 or less |
Good one-way deal | $212 or less |
Fly from
Fly to
Route
Depart
Return
Price
San JoséWashington, D.C.
SJO - IAD
SJOIAD
San José Juan Santamaria Intl
Sun 11/23
2:20 pm-10:12 pm
1 stop30h 52m
Washington, D.C. Dulles Intl
Sat 11/29
8:57 am-12:55 pm
Nonstop4h 58m
San JoséWashington, D.C.
SJO - IAD
SJOIAD
San José Juan Santamaria Intl
Sat 11/15
7:30 am-9:21 pm
1 stop12h 51m
Washington, D.C. Dulles Intl
Wed 11/19
6:00 am-1:15 pm
1 stop8h 15m
San JoséWashington, D.C.
SJO - IAD
SJOIAD
San José Juan Santamaria Intl
Wed 1/21
6:30 am-4:14 pm
1 stop8h 44m
Washington, D.C. Dulles Intl
Sat 1/24
12:50 pm-8:39 pm
1 stop8h 49m
San JoséWashington, D.C.
SJO - IAD
SJOIAD
San José Juan Santamaria Intl
Fri 1/23
8:45 am-8:49 pm
1 stop11h 04m
Washington, D.C. Dulles Intl
Fri 2/6
8:15 am-6:16 pm
1 stop11h 01m
San JoséWashington, D.C.
SJO - IAD
SJOIAD
San José Juan Santamaria Intl
Tue 11/11
2:20 pm-11:44 pm
1 stop8h 24m
Washington, D.C. Dulles Intl
Tue 11/18
6:00 am-12:42 pm
1 stop7h 42m
San JoséBaltimore
SJO - BWI
SJOBWI
San José Juan Santamaria Intl
Fri 12/5
8:45 am-10:25 pm
1 stop12h 40m
Baltimore/Washington
Mon 12/8
3:56 pm-1:15 pm
1 stop22h 19m
San JoséBaltimore
SJO - BWI
SJOBWI
San José Juan Santamaria Intl
Wed 1/21
8:45 am-9:41 pm
2 stops11h 56m
Baltimore/Washington
Wed 2/4
12:25 pm-8:39 pm
1 stop9h 14m
San JoséBaltimore
SJO - BWI
SJOBWI
San José Juan Santamaria Intl
Sat 11/22
2:20 pm-9:24 pm
2 stops30h 04m
Baltimore/Washington
Wed 11/26
6:16 pm-1:15 pm
1 stop19h 59m
San JoséBaltimore
SJO - BWI
SJOBWI
San José Juan Santamaria Intl
Thu 1/22
6:30 am-4:06 pm
1 stop8h 36m
Baltimore/Washington
Sun 2/1
8:00 am-8:39 pm
1 stop13h 39m
San JoséBaltimore
SJO - BWI
SJOBWI
San José Juan Santamaria Intl
Fri 11/7
2:20 pm-9:59 am
2 stops18h 39m
Baltimore/Washington
Tue 11/11
6:00 am-8:39 pm
1 stop15h 39m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
The best time to book flights from San José to Washington, D.C. is 47 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, July is the cheapest month in which you can book a flight from San José to Washington, D.C. (average of $139). Flying from San José to Washington, D.C. in January is currently the most expensive (average of $225). 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.
It’s optimal to fly from San José to Washington, D.C. in the afternoon. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight at noon.
Travelers seeking maximum savings on their San José to Washington, D.C. flight should consider departing on Friday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Crew
Entertainment
Food
Overall
Boarding
Comfort
Reviews
Mary,Oct 2025
AMS - PDX
Crew
Entertainment
Food
Overall
Boarding
Comfort
Reviews
Mary,Oct 2025
AMS - PDX
Crew
Entertainment
Food
Overall
Boarding
Comfort
Reviews
Mary,Oct 2025
AMS - PDX
Crew
Entertainment
Food
Overall
Boarding
Comfort
Reviews
Mary,Oct 2025
AMS - PDX
Crew
Entertainment
Food
Overall
Boarding
Comfort
Reviews
Mary,Oct 2025
AMS - PDX
Crew
Entertainment
Food
Overall
Boarding
Comfort
Reviews
Mary,Oct 2025
AMS - PDX
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$171 | Average$330 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$194 | Average$266 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$210 | Average$376 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$216 | Average$423 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$222 | Average$351 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$225 | Average$363 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$234 | Average$310 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$246 | Average$464 | FlexibilityNo cancel fee | On-time63% |