Seattle Tacoma International to Washington Dulles International Flights
If it is your first time travelling to Washington Dulles International then check out the airliners Singapore Airlines, Jet Linx Aviation, Japan Airlines, Brussels Airlines, Avianca, Austrian Airlines, Korean Air, Ethiopian Airlines, Delta Air Lines, Copa Airlines, China Eastern Airlines, All Nippon Airways, Lufthansa, Qatar Airways, Hawaiian Airlines, American Airlines, Air Tahiti Nui, Alaska Airlines and United Airlines. These airliners all offer direct flights that depart from Seattle-Tacoma International, so you will find flying to Washington Dulles International is quite easy. The flight time is approximately 5 Hours 10 Minutes.
The exact cost of the flight we vary quite significantly base on the dates you travel, the time of day you will depart and how long in advance you pre book the flights. The cheapest flights available will generally be mid week or late in the evening, so if you are on a budget then these are the flight times you should consider. Alternatively, you could book well in advance and you flight could be up to 50% cheaper, especially with budget airliners. The ticket prices for most airliners will increase the close you get the departure date, so as soon as you know the date you will travel you should book your flights.
When arriving at Washington Dulles International don’t forget to set your watch to the local time!
For a full summary of all the airliners that fly from Seattle-Tacoma International to Washington Dulles International, please see the table below.
| Airliner | Mo | Tu | We | Th | Fr | Sa | Su | First Flight | Last Flight |
| United Airlines | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 08:00 | 23:23 |
| Alaska Airlines | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 09:15 | 23:30 |
| Qatar Airways | 3 | 3 | 3 | 3 | 3 | 3 | 0 | 09:15 | 23:59 |
| Hawaiian Airlines | 3 | 3 | 3 | 3 | 3 | 3 | 0 | 09:15 | 23:59 |
| American Airlines | 3 | 3 | 3 | 3 | 3 | 3 | 0 | 09:15 | 23:59 |
| Air Tahiti Nui | 3 | 3 | 3 | 3 | 3 | 3 | 0 | 09:15 | 23:59 |
| Lufthansa | 2 | 2 | 2 | 2 | 2 | 2 | 0 | 08:00 | 13:08 |
| Korean Air | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 05:59 | 21:55 |
| Ethiopian Airlines | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 22:05 | 22:15 |
| Delta Air Lines | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 21:55 | 21:55 |
| Copa Airlines | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 22:05 | 22:15 |
| China Eastern Airlines | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 05:59 | 21:55 |
| All Nippon Airways | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 22:05 | 22:15 |
| Brussels Airlines | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 08:00 | 08:00 |
| Avianca | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 12:55 | 13:08 |
| Austrian Airlines | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 08:00 | 08:00 |
| Japan Airlines | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 23:30 | 23:30 |
| Singapore Airlines | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 23:59 | 23:59 |
| Jet Linx Aviation | 1 | 0 | 1 | 1 | 0 | 1 | 0 | 07:27 | 07:27 |
United Airlines offer the highest number of flights for this route with departures times between 08:00 and 23:23.
You can find the latest flight availability and prices from United Airlines at united.com. You can also book direct and get their latest discounts.
Flight times for United Airlines are summarised in the table below. These time were correct at the time of writing, but please be aware that times may vary from time to time so please check their website for exact times and the dates you wish to fly.
| Day | Flying Time |
| Monday | 08:00, 12:55, 22:15 and 23:23 |
| Tuesday | 08:00, 12:55, 22:15 and 23:23 |
| Wednesday | 08:00, 12:55, 22:15 and 23:23 |
| Thursday | 08:00, 13:00, 22:05 and 23:20 |
| Friday | 08:00, 13:08, 22:05 and 23:20 |
| Saturday | 08:00, 13:00, 22:05 and 23:20 |
| Sunday | 08:14, 13:00, 22:05 and 23:20 |
If you are flexible on the airport you depart from, then there are other airports that offer direct flights to Washington Dulles International. You can see full details of these below.
| Route | Stops | Distance | Flying Time |
| Seattle to Baltimore Washington International Thurgood Marshall | 0 | 3,748 km (2,329 miles) | 5 Hours 13 Minutes |
| Seattle to Washington Ronald Reagan | 0 | 3,738 km (2,323 miles) | 5 Hours 12 Minutes |
| Seattle to Philadelphia | 0 | 3,817 km (2,372 miles) | 5 Hours 18 Minutes |
Please remember to leave plenty of time to get though customers when you are departing form the airports. Flights regulations are getting very strict these days so getting through customs can take in excess of 1 hour in some cases.
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