Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Seattle
IAD - SEA
IADSEA
Washington, D.C. Dulles Intl
sáb. 1/11
4:20 pm-7:20 pm
Nonstop6h 00m
Seattle/Tacoma Intl
mar. 1/14
7:25 am-3:25 pm
Nonstop5h 00m
Washington, D.C.Seattle
IAD - SEA
IADSEA
Washington, D.C. Dulles Intl
mié. 1/29
6:57 pm-10:00 pm
Nonstop6h 03m
Seattle/Tacoma Intl
dom. 2/2
9:54 am-5:57 pm
Nonstop5h 03m
Washington, D.C.Seattle
IAD - SEA
IADSEA
Washington, D.C. Dulles Intl
mié. 1/29
6:22 am-7:10 pm
1 stop15h 48m
Seattle/Tacoma Intl
dom. 2/2
1:43 pm-8:41 am
1 stop15h 58m
Washington, D.C.Seattle
IAD - SEA
IADSEA
Washington, D.C. Dulles Intl
jue. 2/20
5:19 pm-8:19 pm
Nonstop6h 00m
Seattle/Tacoma Intl
mié. 2/26
7:00 am-9:03 pm
1 stop11h 03m
Washington, D.C.Portland
IAD - PDX
IADPDX
Washington, D.C. Dulles Intl
mié. 12/11
6:07 am-11:01 am
1 stop7h 54m
Portland
mié. 12/25
5:10 pm-6:10 am
1 stop10h 00m
Washington, D.C.Spokane
IAD - GEG
IADGEG
Washington, D.C. Dulles Intl
mar. 1/7
6:32 am-3:33 pm
1 stop12h 01m
Spokane
mar. 1/14
1:50 pm-11:30 pm
1 stop6h 40m
Washington, D.C.Portland
IAD - PDX
IADPDX
Washington, D.C. Dulles Intl
mié. 12/18
6:30 am-1:10 pm
1 stop9h 40m
Portland
mié. 12/25
8:00 am-3:56 pm
Nonstop4h 56m
Washington, D.C.Portland
IAD - PDX
IADPDX
Washington, D.C. Dulles Intl
mié. 12/11
6:00 am-1:04 pm
1 stop10h 04m
Portland
mar. 12/17
6:30 am-7:28 pm
1 stop9h 58m
Washington, D.C.Portland
IAD - PDX
IADPDX
Washington, D.C. Dulles Intl
mié. 2/5
6:57 pm-11:43 pm
1 stop7h 46m
Portland
lun. 2/10
1:52 pm-5:57 pm
1 stop25h 05m
Washington, D.C.Spokane
IAD - GEG
IADGEG
Washington, D.C. Dulles Intl
mar. 1/7
3:05 pm-11:57 pm
2 stops11h 52m
Spokane
mar. 1/14
1:11 pm-12:18 am
1 stop8h 07m
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to State of Washington (average of $238). Flying from Washington, D.C. Dulles Intl Airport to State of Washington in July is currently the most expensive (average of $411). 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.
When flying from Washington, D.C. Dulles Intl Airport to State of Washington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
The most flights from IAD to USWA are scheduled on a Wednesday (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (13 on average).
In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.
If weather is an important factor for your trip to State of Washington, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).
Entertainment
Food
Overall
Boarding
Comfort
Crew
Reviews
Great service throughout our flight. Easy boarding with early bird check in
Entertainment
Food
Overall
Boarding
Comfort
Crew
Reviews
Great service throughout our flight. Easy boarding with early bird check in
Entertainment
Food
Overall
Boarding
Comfort
Crew
Reviews
Great service throughout our flight. Easy boarding with early bird check in
Entertainment
Food
Overall
Boarding
Comfort
Crew
Reviews
Great service throughout our flight. Easy boarding with early bird check in
Entertainment
Food
Overall
Boarding
Comfort
Crew
Reviews
Great service throughout our flight. Easy boarding with early bird check in
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Sun Country Air | Cheapest$144 | Average$357 | FlexibilityNo cancel fee | On-time83% |
Delta | Cheapest$170 | Average$506 | FlexibilityNo cancel fee | On-timeN/A |
Alaska Airlines | Cheapest$207 | Average$584 | FlexibilityNo cancel fee | On-time75% |
American Airlines | Cheapest$252 | Average$485 | FlexibilityNo cancel fee | On-time71% |
United Airlines | Cheapest$274 | Average$508 | FlexibilityNo cancel fee | On-time69% |