$212+ Cheap flights from Redmond (RDM) 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
RDM — IAD
Sep 3 — Sep 101
Round-trip
1 adult, Economy
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Find cheap flights from Redmond 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.Cheap flight deals from Redmond to Dulles Intl
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One-way
Cheapest flights from Redmond to Dulles IntlExplore the most affordable flight options available from Redmond to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 4, 2026.
Explore the most affordable flight options available from Redmond to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 4, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:35 pm -
1 stop7h 24m
Tue 11/37:46 am -
1 stop7h 52m
Deal found 8/3![Alaska Airlines logo]()
$423
This Delta deal was found by Cheapflights users on 7/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:24 pm -
2 stops12h 29m
Tue 10/66:13 am -
1 stop8h 32m
Deal found 7/31![Delta logo]()
$428
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/294:02 pm -
2 stops10h 38m
Tue 9/17:00 am -
1 stop8h 34m
Deal found 7/30![Alaska Airlines logo]()
$452
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/51:35 pm -
1 stop7h 24m
Sat 10/107:02 am -
1 stop8h 36m
Deal found 7/31![Alaska Airlines logo]()
$456
This Delta deal was found by Cheapflights users on 8/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:24 pm -
2 stops13h 26m
Sat 10/107:05 am -
1 stop8h 40m
Deal found 8/4![Delta logo]()
$461
This Booking.com deal was found by Cheapflights users on 8/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:02 pm -
2 stops10h 38m
Tue 9/85:57 pm -
2 stops20h 55m
Deal found 8/3![Alaska Airlines logo]()
$481
This Alaska Airlines deal was found by Cheapflights users on 8/4. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:07 am -
1 stop8h 07m
Fri 10/27:00 am -
1 stop8h 40m
Deal found 8/4![Alaska Airlines logo]()
$489
Best flights from Redmond to Dulles IntlDiscover carefully curated flight deals from Redmond to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 4, 2026.
Discover carefully curated flight deals from Redmond to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 4, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:35 pm -
1 stop7h 24m
Tue 11/37:46 am -
1 stop7h 52m
Deal found 7/31![Alaska Airlines logo]()
$423
This Delta deal was found by Cheapflights users on 7/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:24 pm -
2 stops13h 21m
Tue 10/612:30 pm -
2 stops13h 36m
Deal found 7/31![Delta logo]()
$433
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Mon 8/241:52 pm -
1 stop8h 05m
Sat 8/298:20 am -
1 stop9h 39m
Deal found 7/31![United Airlines logo]()
$509
This Alaska Airlines deal was found by Cheapflights users on 8/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:06 pm -
1 stop8h 34m
Sat 10/107:02 am -
1 stop8h 36m
Deal found 8/2![Alaska Airlines logo]()
$456
This Delta deal was found by Cheapflights users on 8/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2512:30 pm -
1 stop8h 13m
Fri 10/25:15 pm -
2 stops9h 43m
Deal found 8/1![Delta logo]()
$494
This Alaska Airlines deal was found by Cheapflights users on 8/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/31:35 pm -
1 stop7h 24m
Tue 10/69:38 am -
1 stop10h 48m
Deal found 8/3![Alaska Airlines logo]()
$461
This Alaska Airlines deal was found by Cheapflights users on 8/4. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:07 am -
1 stop8h 07m
Fri 10/27:00 am -
1 stop8h 40m
Deal found 8/4![Alaska Airlines logo]()
$489
Last-minute flights from Redmond to Dulles IntlDiscover last-minute flight deals from Redmond to Dulles Intl. Data last updated August 4, 2026 and is based on user searches.
Discover last-minute flight deals from Redmond to Dulles Intl. Data last updated August 4, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:15 am -
2 stops10h 50m
Sat 8/227:10 am -
1 stop9h 02m
Deal found 8/1![Delta logo]()
$512
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Mon 8/241:52 pm -
1 stop8h 05m
Sat 8/298:20 am -
1 stop9h 39m
Deal found 7/31![United Airlines logo]()
$509
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:07 am -
1 stop8h 07m
Tue 9/17:00 am -
1 stop8h 34m
Deal found 7/30![Alaska Airlines logo]()
$423
This Booking.com deal was found by Cheapflights users on 8/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:02 pm -
2 stops10h 38m
Tue 9/85:57 pm -
2 stops20h 55m
Deal found 8/3![Alaska Airlines logo]()
$481
This Alaska Airlines deal was found by Cheapflights users on 8/4. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:07 am -
1 stop8h 07m
Fri 10/27:00 am -
1 stop8h 40m
Deal found 8/4![Alaska Airlines logo]()
$489
This Delta deal was found by Cheapflights users on 8/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2512:30 pm -
1 stop8h 13m
Fri 10/25:15 pm -
2 stops9h 43m
Deal found 8/1![Delta logo]()
$494
One-way flights from Redmond to Dulles IntlSearch for one-way flight options from Redmond to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated August 4, 2026.
Search for one-way flight options from Redmond to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated August 4, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:37 pm -
1 stop7h 22m
Deal found 7/31![Alaska Airlines logo]()
$212
This Delta deal was found by Cheapflights users on 8/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:24 pm -
2 stops11h 57m
Deal found 8/4![Delta logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:20 pm -
1 stop15h 00m
Deal found 7/31![Multiple Airlines logo]()
$226
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Sat 8/291:03 pm -
1 stop7h 16m
Deal found 8/1![United Airlines logo]()
$245
This Delta deal was found by Cheapflights users on 8/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:24 pm -
2 stops13h 21m
Deal found 8/4![Delta logo]()
$250
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:25 am -
2 stops15h 34m
Deal found 7/31![Alaska Airlines logo]()
$267
This Delta deal was found by Cheapflights users on 8/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:36 pm -
2 stops11h 47m
Deal found 8/4![Delta logo]()
$268
This Booking.com deal was found by Cheapflights users on 8/4. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:25 am -
2 stops14h 34m
Deal found 8/4![Alaska Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 8/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1412:31 pm -
1 stop8h 08m
Deal found 8/4![Delta logo]()
$328
This Delta deal was found by Cheapflights users on 7/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:15 am -
2 stops14h 11m
Deal found 7/31![Delta logo]()
$333
This Delta deal was found by Cheapflights users on 7/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/131:44 pm -
1 stop30h 12m
Deal found 7/31![Delta logo]()
$347
Find flight deals from Redmond to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from Redmond (RDM) 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 August 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $423 (Alaska Airlines) |
One-way from | $212 (Alaska Airlines) |
Popular in | June |
Cheapest in | September |
Average price | $406 |
Cheapflights Fare Finder
Customize your flight search to find flights from Redmond 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 August 4, 2026.
Use the filters below to find and compare flights from Redmond to Washington, D.C. Dulles Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
RedmondWashington, D.C.
RDM - IAD
RDMIAD
Bend/Redmond
Sat 10/31
1:35 pm-11:59 pm
1 stop7h 24m
Washington, D.C. Dulles Intl
Tue 11/3
7:46 am-12:38 pm
1 stop7h 52m
$423
RedmondWashington, D.C.
RDM - IAD
RDMIAD
Bend/Redmond
Sat 10/3
7:24 pm-11:45 am
2 stops13h 21m
Washington, D.C. Dulles Intl
Tue 10/6
12:30 pm-11:06 pm
2 stops13h 36m
$433
RedmondWashington, D.C.
RDM - IAD
RDMIAD
Bend/Redmond
Mon 10/5
6:06 pm-5:40 am
1 stop8h 34m
Washington, D.C. Dulles Intl
Sat 10/10
7:02 am-12:38 pm
1 stop8h 36m
$456
RedmondWashington, D.C.
RDM - IAD
RDMIAD
Bend/Redmond
Sat 10/3
1:35 pm-11:59 pm
1 stop7h 24m
Washington, D.C. Dulles Intl
Tue 10/6
9:38 am-5:26 pm
1 stop10h 48m
$461
RedmondWashington, D.C.
RDM - IAD
RDMIAD
Bend/Redmond
Fri 9/25
7:07 am-6:14 pm
1 stop8h 07m
Washington, D.C. Dulles Intl
Fri 10/2
7:00 am-12:40 pm
1 stop8h 40m
$489
RedmondWashington, D.C.
RDM - IAD
RDMIAD
Bend/Redmond
Fri 9/25
12:30 pm-11:43 pm
1 stop8h 13m
Washington, D.C. Dulles Intl
Fri 10/2
5:15 pm-11:58 pm
2 stops9h 43m
$494
RedmondWashington, D.C.
RDM - IAD
RDMIAD
Bend/Redmond
Mon 8/24
1:52 pm-12:57 am
1 stop8h 05m
Washington, D.C. Dulles Intl
Sat 8/29
8:20 am-2:59 pm
1 stop9h 39m
$509
Cheapest one-way
RedmondWashington, D.C.
RDM - IAD
RDMIAD
Bend/Redmond
Wed 9/30
1:52 pm-1:13 am
1 stop8h 21m
$212
Quickest one-way
RedmondWashington, D.C.
RDM - IAD
RDMIAD
Bend/Redmond
Wed 9/16
1:37 pm-11:59 pm
1 stop7h 22m
$212
RedmondWashington, D.C.
RDM - IAD
RDMIAD
Bend/Redmond
Sat 8/29
7:36 pm-11:33 am
2 stops12h 57m
$250
Showing 1-10 of 13 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Redmond-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 Redmond-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Redmond-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 Redmond-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 Redmond-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 Redmond to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Redmond with our price prediction graph.
RDM-IAD
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
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 August 4, 2026.
Read through reviews of airlines operating flights from Redmond to Washington, D.C. Dulles Intl Airport, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.4
Comfort
7.3
Crew
8.1
Food
6.6
Entertainment
7.1
Boarding
7.7
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Overall
7.4
Comfort
7.3
Crew
8.1
Food
6.6
Entertainment
7.1
Boarding
7.7
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Related info for your journey
Find useful and relevant information for your journey from Redmond to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Washington, D.C. Dulles Intl Airport?
Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locationsAlexandria
Owings Mills
Arlington
Tysons
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Fredericksburg
Falls Church
Hanover
Laurel
Sterling
Clinton
Oxon Hill
Hunt Valley
Woodbridge
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Other flights to Dulles Intl
Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 4, 2026.
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Redmond and Dulles Intl flights
Browse other Redmond and Dulles Intl flight options. Last updated on August 4, 2026.
Other flights from Redmond
Browse through other flights departing from Redmond. Flights are based on user searches made on Cheapflights and were last updated on August 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Redmond to Dulles Intl
Discover the top airline that operate flights from Redmond to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$372 | Average$635 | FlexibilityNo cancel fee | On-time69% |