Seattle/Tacoma Intl
Washington, D.C. Dulles Intl
Nonstop
5h 08mAlaska Airlines
Los Angeles
Washington, D.C. Dulles Intl
Nonstop
5h 00mAlaska Airlines
Los Angeles
Washington, D.C. Dulles Intl
Nonstop
5h 00mAlaska Airlines
Los Angeles
Washington, D.C. Dulles Intl
Nonstop
5h 00mAlaska Airlines
San Francisco
Washington, D.C. Dulles Intl
Nonstop
5h 10mAlaska Airlines
Los Angeles
Washington, D.C. Dulles Intl
1 stop
9h 45mAlaska Airlines
Seattle/Tacoma Intl
Washington, D.C. Dulles Intl
1 stop
9h 30mWashington, D.C. Dulles Intl
Seattle/Tacoma Intl
1 stop
11h 10mAlaska Airlines
Seattle/Tacoma Intl
Washington, D.C. Dulles Intl
1 stop
9h 30mWashington, D.C. Dulles Intl
Seattle/Tacoma Intl
Nonstop
5h 53mAlaska Airlines
Seattle/Tacoma Intl
Washington, D.C. Dulles Intl
1 stop
9h 30mWashington, D.C. Dulles Intl
Seattle/Tacoma Intl
1 stop
11h 10mAlaska Airlines
San Diego
Washington, D.C. Dulles Intl
1 stop
8h 47mWashington, D.C. Dulles Intl
San Diego
Nonstop
5h 18mAlaska Airlines
Seattle/Tacoma Intl
Washington, D.C. Dulles Intl
1 stop
9h 30mWashington, D.C. Dulles Intl
Seattle/Tacoma Intl
1 stop
10h 28mAlaska Airlines
Los Angeles
Washington, D.C. Dulles Intl
Nonstop
5h 00mWashington, D.C. Dulles Intl
Los Angeles
Nonstop
5h 24mAlaska Airlines
January
$974
February
$1,478
March
$749
April
$582
May
$1,153
June
$1,294
July
$1,049
August
$967
September
$303
October
$1,108
November
$652
December
$1,055
Currently, the cheapest month for business class flights to Washington, D.C. Dulles Intl is September. The most expensive month for business class flights is February. The cheapest prices are shown above but prices will vary according to departure times, airlines, and how early you book.