$83+ Cheap flights from Detroit (DTT) to Dulles Intl (IAD)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — IAD
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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Find cheap flights from Detroit 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 Detroit to Dulles Intl
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Best
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One-way
Cheapest flights from Detroit to Dulles IntlExplore the most affordable flight options available from Detroit to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
Explore the most affordable flight options available from Detroit to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
This Delta deal was found by Cheapflights users on 9/10. 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.
Thu 10/229:46 pm -
Nonstop1h 30m
Thu 10/2910:57 am -
Nonstop1h 35m
Deal found 9/10![Delta logo]()
$157
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2210:29 pm -
1 stop13h 05m
Thu 10/2912:31 pm -
1 stop9h 12m
Deal found 9/10![Frontier logo]()
$158
This Super.com deal was found by Cheapflights users on 9/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:37 am -
1 stop7h 04m
Tue 10/2011:12 am -
1 stop24h 27m
Deal found 9/10![Frontier logo]()
$161
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:57 pm -
1 stop13h 20m
Mon 10/51:50 pm -
1 stop20h 53m
Deal found 9/10![Frontier logo]()
$166
This Super.com deal was found by Cheapflights users on 9/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2210:29 pm -
1 stop13h 05m
Tue 10/2711:16 am -
1 stop24h 24m
Deal found 9/10![Frontier logo]()
$167
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/33:25 pm -
1 stop8h 45m
Mon 10/512:43 pm -
1 stop8h 49m
Deal found 9/10![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Wed 10/213:03 pm -
1 stop9h 18m
Thu 10/227:54 am -
1 stop16h 45m
Deal found 9/14![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Thu 11/123:02 pm -
1 stop8h 41m
Mon 11/169:06 pm -
1 stop14h 37m
Deal found 9/12![Frontier logo]()
$175
This Super.com deal was found by Cheapflights users on 9/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:22 pm -
1 stop4h 59m
Tue 10/2011:12 am -
1 stop24h 27m
Deal found 9/10![Frontier logo]()
$176
This Delta deal was found by Cheapflights users on 9/10. 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 10/32:59 pm -
Nonstop1h 31m
Tue 10/66:05 am -
Nonstop1h 35m
Deal found 9/10![Delta logo]()
$177
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/210:29 pm -
1 stop13h 04m
Sat 10/37:28 pm -
1 stop15h 15m
Deal found 9/10![Frontier logo]()
$181
Best flights from Detroit to Dulles IntlDiscover carefully curated flight deals from Detroit to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
Discover carefully curated flight deals from Detroit to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
This Delta deal was found by Cheapflights users on 9/10. 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 10/139:46 pm -
Nonstop1h 30m
Sat 10/178:13 am -
1 stop7h 41m
Deal found 9/10![Delta logo]()
$207
This Delta deal was found by Cheapflights users on 9/10. 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 12/232:05 pm -
Nonstop1h 36m
Tue 12/2912:36 pm -
Nonstop1h 42m
Deal found 9/10![Delta logo]()
$218
This Delta deal was found by Cheapflights users on 9/14. 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 10/179:46 pm -
Nonstop1h 30m
Sat 10/246:00 am -
1 stop5h 30m
Deal found 9/14![Delta logo]()
$255
This Delta deal was found by Cheapflights users on 9/10. 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 1/99:30 am -
1 stop5h 11m
Sat 1/236:00 am -
1 stop5h 22m
Deal found 9/10![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 9/14. 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 1/68:40 am -
Nonstop1h 33m
Sun 1/1010:05 am -
1 stop7h 04m
Deal found 9/14![Delta logo]()
$274
This Delta deal was found by Cheapflights users on 9/10. 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 3/59:30 pm -
Nonstop1h 32m
Mon 3/86:10 am -
Nonstop1h 41m
Deal found 9/10![Delta logo]()
$279
This Delta deal was found by Cheapflights users on 9/14. 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 12/126:15 pm -
1 stop6h 27m
Sun 12/135:14 pm -
Nonstop1h 40m
Deal found 9/14![Delta logo]()
$290
This Delta deal was found by Cheapflights users on 9/14. 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 10/75:20 am -
1 stop6h 12m
Sun 10/116:05 am -
Nonstop1h 35m
Deal found 9/14![Delta logo]()
$290
This Delta deal was found by Cheapflights users on 9/12. 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.
Thu 10/228:40 am -
Nonstop1h 32m
Tue 10/2710:57 am -
Nonstop1h 35m
Deal found 9/12![Delta logo]()
$299
This Delta deal was found by Cheapflights users on 9/14. 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 10/308:40 am -
Nonstop1h 32m
Mon 11/26:00 am -
1 stop7h 06m
Deal found 9/14![Delta logo]()
$301
Last-minute flights from Detroit to Dulles IntlDiscover last-minute flight deals from Detroit to Dulles Intl. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from Detroit to Dulles Intl. Data last updated September 15, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:57 pm -
1 stop13h 20m
Mon 10/51:50 pm -
1 stop20h 53m
Deal found 9/10![Frontier logo]()
$166
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/210:29 pm -
1 stop13h 04m
Sat 10/37:28 pm -
1 stop15h 15m
Deal found 9/10![Frontier logo]()
$181
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/33:25 pm -
1 stop8h 45m
Mon 10/512:43 pm -
1 stop8h 49m
Deal found 9/10![Frontier logo]()
$171
This Delta deal was found by Cheapflights users on 9/10. 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 10/32:59 pm -
Nonstop1h 31m
Tue 10/66:05 am -
Nonstop1h 35m
Deal found 9/10![Delta logo]()
$177
This Super.com deal was found by Cheapflights users on 9/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:22 pm -
1 stop4h 59m
Tue 10/2011:12 am -
1 stop24h 27m
Deal found 9/10![Frontier logo]()
$176
This Super.com deal was found by Cheapflights users on 9/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:37 am -
1 stop7h 04m
Tue 10/2011:12 am -
1 stop24h 27m
Deal found 9/10![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Wed 10/213:03 pm -
1 stop9h 18m
Thu 10/227:54 am -
1 stop16h 45m
Deal found 9/14![Frontier logo]()
$173
This Delta deal was found by Cheapflights users on 9/10. 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.
Thu 10/229:46 pm -
Nonstop1h 30m
Thu 10/2910:57 am -
Nonstop1h 35m
Deal found 9/10![Delta logo]()
$157
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2210:29 pm -
1 stop13h 05m
Thu 10/2912:31 pm -
1 stop9h 12m
Deal found 9/10![Frontier logo]()
$158
This Super.com deal was found by Cheapflights users on 9/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2210:29 pm -
1 stop13h 05m
Tue 10/2711:16 am -
1 stop24h 24m
Deal found 9/10![Frontier logo]()
$167
This Expedia deal was found by Cheapflights users on 9/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:25 am -
1 stop10h 47m
Wed 11/411:16 am -
1 stop6h 42m
Deal found 9/14![Frontier logo]()
$185
One-way flights from Detroit to Dulles IntlSearch for one-way flight options from Detroit to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
Search for one-way flight options from Detroit to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
This Super.com deal was found by Cheapflights users on 9/12. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:07 pm -
1 stop13h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Frontier logo]()
$83
This Expedia deal was found by Cheapflights users on 9/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/161:02 pm -
1 stop21h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$84
This CheapOair deal was found by Cheapflights users on 9/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:50 pm -
1 stop16h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Frontier logo]()
$85
This Super.com deal was found by Cheapflights users on 9/12. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:07 pm -
1 stop13h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Frontier logo]()
$108
This Super.com deal was found by Cheapflights users on 9/12. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:37 am -
1 stop7h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Frontier logo]()
$114
This Priceline deal was found by Cheapflights users on 9/13. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:00 am -
1 stop7h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/268:25 pm -
2 stops27h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$116
This Super.com deal was found by Cheapflights users on 9/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/184:29 pm -
1 stop27h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$117
This Super.com deal was found by Cheapflights users on 9/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:25 am -
1 stop10h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Frontier logo]()
$120
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:25 am -
1 stop10h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$121
Find flight deals from Detroit to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTT) 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 September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $157 (Delta) |
One-way from | $83 (Super.com) |
Popular in | June |
Cheapest in | February |
Average price | $259 |
Good round-trip deal | $277 or less |
Good one-way deal | $278 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Detroit 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 7,457,451 searches. Data last updated September 15, 2026.
Use the filters below to find and compare flights from Detroit to Washington, D.C. Dulles Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DetroitWashington, D.C.
DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl
DTWIAD
Detroit Metropolitan Wayne County
Tue 10/13
9:46 pm-11:16 pm
Nonstop1h 30m
Washington, D.C. Dulles Intl
Sat 10/17
8:13 am-3:54 pm
1 stop7h 41m
$207
DetroitWashington, D.C.
DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl
DTWIAD
Detroit Metropolitan Wayne County
Sat 3/6
2:48 pm-4:20 pm
Nonstop1h 32m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$213
DetroitWashington, D.C.
DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl
DTWIAD
Detroit Metropolitan Wayne County
Mon 11/9
9:00 am-10:45 am
Nonstop1h 45m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$213
DetroitWashington, D.C.
DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl
DTWIAD
Detroit Metropolitan Wayne County
Mon 10/26
5:45 am-7:21 am
Nonstop1h 36m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$213
DetroitWashington, D.C.
DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl
DTWIAD
Detroit Metropolitan Wayne County
Fri 10/16
8:40 am-10:12 am
Nonstop1h 32m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$213
DetroitWashington, D.C.
DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl
DTWIAD
Detroit Metropolitan Wayne County
Wed 3/10
10:12 am-11:48 am
Nonstop1h 36m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$213
DetroitWashington, D.C.
DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl
DTWIAD
Detroit Metropolitan Wayne County
Wed 12/23
2:05 pm-3:41 pm
Nonstop1h 36m
Washington, D.C. Dulles Intl
Tue 12/29
12:36 pm-2:18 pm
Nonstop1h 42m
$218
DetroitWashington, D.C.
DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl
DTWIAD
Detroit Metropolitan Wayne County
Tue 10/20
2:57 pm-4:28 pm
Nonstop1h 31m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$223
DetroitWashington, D.C.
DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl
DTWIAD
Detroit Metropolitan Wayne County
Tue 12/1
9:43 pm-11:23 pm
Nonstop1h 40m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$223
DetroitWashington, D.C.
DTW Detroit Metropolitan Wayne County - IAD Washington, D.C. Dulles Intl
DTWIAD
Detroit Metropolitan Wayne County
Tue 11/10
2:45 pm-4:20 pm
Nonstop1h 35m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$223
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Detroit 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 Detroit to Dulles Intl in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Detroit-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 Detroit-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Detroit-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 Detroit-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 Detroit-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 Detroit to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Detroit with our price prediction graph.
DTT-IAD
DTW-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.
Cheapflights Insights
Everything you need to know about your flight from Detroit to Washington, D.C. Dulles Intl Airport
DTT-IAD
DTW-IAD
What is the cheapest month to book a flight from Detroit to Washington, D.C. Dulles Intl Airport?
Currently, September is the cheapest month in which you can book a flight from Detroit to Washington, D.C. Dulles Intl Airport (average of $255). Flying from Detroit to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $362). 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 DTT to IAD?
Find hourly flight availability from Detroit 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 September 15, 2026.
It’s optimal to fly from Detroit to Washington, D.C. Dulles Intl Airport in the afternoon. By choosing this option you can save up to 55% on the cost of your flight, compared to a flight at noon.
Weekly flight availability from Detroit to Washington, D.C. Dulles Intl Airport
Explore weekly flight availability from Detroit to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 15, 2026.
The most flights from DTT to IAD are scheduled on a Monday (28 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (15 on average).
How much does it cost to fly round-trip from Detroit to Washington, D.C. Dulles Intl Airport?
Airfare is below average for this route at the moment.
Detroit to Washington, D.C. Dulles Intl Airport flights typically cost between $259 and $280 in October.The cheapest round-trip price found within the last 5 days was $157 on Delta (Oct 29-Nov 3).
How far ahead should I book a flight from Detroit to Washington, D.C. Dulles Intl Airport?
The price you pay for your flight from Detroit to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 54 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Detroit to Washington, D.C. Dulles Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from Detroit to Dulles Intl. Price data was last updated on September 12, 2026.
Travelers seeking maximum savings on their Detroit to Washington, D.C. Dulles Intl Airport flight should consider departing on Friday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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 September 15, 2026.
Read through reviews of airlines operating flights from Detroit to Washington, D.C. Dulles Intl Airport, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.8
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentSherry,Aug 2023
ATL - DCA
Overall
7.8
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentSherry,Aug 2023
ATL - DCA
Overall
7.8
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentSherry,Aug 2023
ATL - DCA
Related info for your journey
Find useful and relevant information for your journey from Detroit 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
Arlington
Owings Mills
Lanham
Tysons
Woodbridge
Reston
Chantilly
Herndon
Hyattsville
Rockville
Fredericksburg
Falls Church
Sterling
Hanover
Laurel
Springfield
Oxon Hill
Clinton
Hunt Valley
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Top 3 airlines flying from Detroit to Dulles Intl
Discover the top 3 airlines that operate flights from Detroit 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 7,457,451 searches. Data last updated September 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$107 | Average$254 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$181 | Average$279 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$189 | Average$294 | FlexibilityNo cancel fee | On-time69% |