$161+ Cheap flights from San José (SJO) to Dulles Intl (IAD)
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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from San José to Dulles Intl 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.The best prices from San José Juan Santamaria Intl to Washington, D.C. Dulles Intl are usually found in October or November, booked 67 days in advance, depart on a Wednesday or Monday and return on a Monday
Cheap flight deals from San José to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from San José (SJO) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 23, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $241 (eDestinos) |
One-way from | $161 (American Airlines) |
Popular in | December |
Cheapest in | October |
Average price | $312 |
Good round-trip deal | $383 or less |
Good one-way deal | $248 or less |
Find flight deals from San José to Dulles Intl
Cheapest flights from San José to Dulles IntlExplore the most affordable flight options available from San José to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 23, 2025.
Explore the most affordable flight options available from San José to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 23, 2025.
This eDestinos deal was found by Cheapflights users on 1/23. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 1/21. 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.
This eDestinos deal was found by Cheapflights users on 1/22. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Copa Airlines deal was found by Cheapflights users on 1/23. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 1/23. 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.
This Avianca deal was found by Cheapflights users on 1/23. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flights from San José to Dulles Intl within your budget
Customize your flight search to find flights from San José to Dulles Intl 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 January 23, 2025.
Fly from
Fly to
Route
Depart
Return
Price
San JoséWashington, D.C.
SJO - IAD
SJOIAD
San José Juan Santamaria Intl
Fri 4/4
11:15 am-12:10 am
1 stop10h 55m
Washington, D.C. Dulles Intl
Sun 4/6
2:05 pm-10:14 am
1 stop22h 09m
San JoséWashington, D.C.
SJO - IAD
SJOIAD
San José Juan Santamaria Intl
Wed 2/12
6:30 am-10:09 pm
1 stop14h 39m
Washington, D.C. Dulles Intl
Sat 2/22
10:05 pm-8:39 pm
1 stop23h 34m
San JoséWashington, D.C.
SJO - IAD
SJOIAD
San José Juan Santamaria Intl
Fri 2/21
11:15 am-10:57 pm
1 stop10h 42m
Washington, D.C. Dulles Intl
Fri 2/28
1:00 pm-10:17 am
1 stop22h 17m
San JoséWashington, D.C.
SJO - IAD
SJOIAD
San José Juan Santamaria Intl
Wed 2/5
4:09 am-2:03 pm
1 stop8h 54m
Washington, D.C. Dulles Intl
Tue 2/11
3:34 pm-7:35 am
1 stop17h 01m
San JoséWashington, D.C.
SJO - IAD
SJOIAD
San José Juan Santamaria Intl
Fri 2/7
1:11 pm-8:41 am
2 stops18h 30m
Washington, D.C. Dulles Intl
Mon 2/17
6:12 am-11:19 pm
1 stop18h 07m
San JoséWashington, D.C.
SJO - IAD
SJOIAD
San José Juan Santamaria Intl
Thu 5/29
9:35 am-6:05 pm
1 stop6h 30m
Washington, D.C. Dulles Intl
Mon 6/2
2:35 am-7:40 am
1 stop7h 05m
San JoséWashington, D.C.
SJO - IAD
SJOIAD
San José Juan Santamaria Intl
Wed 3/5
12:59 am-11:00 am
1 stop9h 01m
San JoséWashington, D.C.
SJO - IAD
SJOIAD
San José Juan Santamaria Intl
Sat 3/1
11:15 am-11:09 am
1 stop22h 54m
San JoséWashington, D.C.
SJO - IAD
SJOIAD
San José Juan Santamaria Intl
Tue 3/4
7:50 pm-3:10 am
1 stop6h 20m
San JoséWashington, D.C.
SJO - IAD
SJOIAD
San José Juan Santamaria Intl
Sun 3/30
11:15 am-12:09 pm
1 stop22h 54m
Compare providers for flights from San José to Dulles Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San José to Dulles Intl in January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San José, San José Province-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San José, San José Province-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San José, San José Province-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San José, San José Province-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San José, San José Province-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San José to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from San José with our price prediction graph.
Travel insights for flights from San José to Dulles Intl
Get recent, data-driven insights about flights from San José to Dulles Intl including ideal travel times, pricing trends, and more.
How far ahead should I book a flight from San José, San José Province to Washington, D.C. Dulles Intl Airport?
Use this chart to determine the optimal time to book a round-trip flight from San José to Dulles Intl. Price data was last updated on January 17, 2025.
The best time to book flights from San José, San José Province to Washington, D.C. Dulles Intl Airport is 67 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.
What is the cheapest month to book a flight from San José, San José Province to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from San José, San José Province to Washington, D.C. Dulles Intl Airport (average of $309). Flying from San José, San José Province to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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.
What is the cheapest time of day to fly from SJO to IAD?
Find hourly flight availability from San José to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 23, 2025.
Unlike at noon, when flights are generally more expensive, you can save up to 44% on flights from San José, San José Province to Washington, D.C. Dulles Intl Airport by exploring options for tickets in the afternoon.
What is the cheapest day to fly from San José, San José Province to Washington, D.C. Dulles Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from San José to Dulles Intl. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their San José, San José Province to Washington, D.C. Dulles Intl Airport flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Rainfall in Dulles Intl by month
Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.
Temperature in Dulles Intl by month
Plan your trip to Dulles Intl by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).
Reviews of airlines servicing Dulles Intl
Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated January 23, 2025.
See what other customers who have flown with United Airlines, American Airlines and Avianca from San José to Washington, D.C. have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
Entertainment
Crew
Food
Boarding
Comfort
Reviews
Our first flight was good. The return flight is a different story. I picked and paid for seat 11D and then checked in with that same seat assignment. When I boarded the plain I somehow had lost that seat and was stuck in a middle seat that I was not happy with for a 5 hour flight. The food was terrible - I could not even eat the chicken and "cheese" sandwich it was so bad. The difference in the two flights was amazing - the one from the Chicago to Panama City was great - seating and food. The return flight was very different.
Overall
Entertainment
Crew
Food
Boarding
Comfort
Reviews
Our first flight was good. The return flight is a different story. I picked and paid for seat 11D and then checked in with that same seat assignment. When I boarded the plain I somehow had lost that seat and was stuck in a middle seat that I was not happy with for a 5 hour flight. The food was terrible - I could not even eat the chicken and "cheese" sandwich it was so bad. The difference in the two flights was amazing - the one from the Chicago to Panama City was great - seating and food. The return flight was very different.
Overall
Entertainment
Crew
Food
Boarding
Comfort
Reviews
Our first flight was good. The return flight is a different story. I picked and paid for seat 11D and then checked in with that same seat assignment. When I boarded the plain I somehow had lost that seat and was stuck in a middle seat that I was not happy with for a 5 hour flight. The food was terrible - I could not even eat the chicken and "cheese" sandwich it was so bad. The difference in the two flights was amazing - the one from the Chicago to Panama City was great - seating and food. The return flight was very different.
Overall
Entertainment
Crew
Food
Boarding
Comfort
Reviews
Our first flight was good. The return flight is a different story. I picked and paid for seat 11D and then checked in with that same seat assignment. When I boarded the plain I somehow had lost that seat and was stuck in a middle seat that I was not happy with for a 5 hour flight. The food was terrible - I could not even eat the chicken and "cheese" sandwich it was so bad. The difference in the two flights was amazing - the one from the Chicago to Panama City was great - seating and food. The return flight was very different.
Overall
Entertainment
Crew
Food
Boarding
Comfort
Reviews
Our first flight was good. The return flight is a different story. I picked and paid for seat 11D and then checked in with that same seat assignment. When I boarded the plain I somehow had lost that seat and was stuck in a middle seat that I was not happy with for a 5 hour flight. The food was terrible - I could not even eat the chicken and "cheese" sandwich it was so bad. The difference in the two flights was amazing - the one from the Chicago to Panama City was great - seating and food. The return flight was very different.