$102+ Cheap flights from Dulles Intl (IAD) to Delaware
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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ILG
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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Cheapest flights from Dulles Intl to DelawareExplore the most affordable flight options available from Dulles Intl to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2026.
Explore the most affordable flight options available from Dulles Intl to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Tue 10/67:50 am -
1 stop10h 24m
Tue 10/138:30 am -
1 stop15h 51m
Deal found 9/8![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:04 pm -
1 stop10h 12m
Thu 10/15:32 pm -
1 stop6h 38m
Deal found 9/4![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 9/7. 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.
Sat 10/317:52 am -
1 stop15h 14m
Tue 11/35:22 pm -
1 stop6h 21m
Deal found 9/7![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 10/217:50 am -
1 stop10h 25m
Wed 10/285:22 pm -
1 stop6h 21m
Deal found 9/6![Frontier logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 10/227:54 am -
1 stop15h 49m
Thu 10/298:30 am -
1 stop8h 42m
Deal found 9/7![Frontier logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Fri 10/211:12 am -
1 stop12h 57m
Sat 10/35:32 pm -
1 stop6h 38m
Deal found 9/5![Frontier logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Sat 9/267:50 am -
1 stop15h 28m
Mon 9/2812:40 pm -
1 stop11h 30m
Deal found 9/5![Frontier logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/259:04 pm -
1 stop10h 12m
Sat 9/2612:40 pm -
1 stop11h 30m
Deal found 9/4![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Sat 10/37:50 am -
1 stop15h 28m
Wed 10/75:32 pm -
1 stop6h 38m
Deal found 9/8![Frontier logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 10/17:50 am -
1 stop10h 24m
Sun 10/48:41 am -
1 stop15h 29m
Deal found 9/6![Frontier logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 10/711:12 am -
1 stop9h 14m
Wed 10/149:06 pm -
2 stops20h 07m
Deal found 9/8![Multiple Airlines logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 9/2110:27 am -
1 stop9h 28m
Fri 9/258:11 pm -
1 stop14h 06m
Deal found 9/6![Multiple Airlines logo]()
$422
Best flights from Dulles Intl to DelawareDiscover carefully curated flight deals from Dulles Intl to Delaware that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
Discover carefully curated flight deals from Dulles Intl to Delaware that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
This United Airlines deal was found by Cheapflights users on 9/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/28:30 am -
Nonstop1h 13m
Sun 10/410:40 am -
Nonstop0h 56m
Deal found 9/4![United Airlines logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 10/711:12 am -
1 stop9h 14m
Wed 10/149:06 pm -
1 stop13h 11m
Deal found 9/8![Multiple Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 10/98:30 am -
Nonstop1h 13m
Tue 10/137:30 pm -
Nonstop1h 19m
Deal found 9/9![United Airlines logo]()
$269
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 10/98:30 am -
Nonstop1h 13m
Fri 10/1610:40 am -
Nonstop1h 09m
Deal found 9/9![United Airlines logo]()
$269
This United Airlines deal was found by Cheapflights users on 9/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:30 am -
Nonstop1h 13m
Sat 9/2610:40 am -
Nonstop1h 07m
Deal found 9/4![United Airlines logo]()
$269
This American Airlines deal was found by Cheapflights users on 9/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:14 am -
1 stop6h 07m
Sat 9/266:00 am -
1 stop3h 55m
Deal found 9/7![American Airlines logo]()
$660
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Tue 10/610:16 pm -
Nonstop1h 14m
Sun 10/1110:38 am -
Nonstop0h 56m
Deal found 9/6![United Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 9/2110:27 am -
1 stop9h 28m
Fri 9/258:11 pm -
1 stop14h 06m
Deal found 9/6![Multiple Airlines logo]()
$422
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Fri 9/185:36 pm -
Nonstop1h 18m
Sun 9/207:40 pm -
Nonstop1h 21m
Deal found 9/5![United Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 9/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1410:15 pm -
Nonstop1h 10m
Sun 11/1510:30 am -
Nonstop1h 10m
Deal found 9/4![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 9/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1410:15 pm -
Nonstop1h 10m
Mon 11/167:40 pm -
Nonstop1h 13m
Deal found 9/4![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 9/8. 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 11/710:15 pm -
Nonstop1h 10m
Tue 11/107:40 pm -
Nonstop1h 13m
Deal found 9/8![United Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 9/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:14 am -
1 stop6h 07m
Mon 9/216:00 am -
1 stop5h 56m
Deal found 9/8![American Airlines logo]()
$663
This United Airlines deal was found by Cheapflights users on 9/7. 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 10/38:30 am -
Nonstop1h 12m
Sat 10/33:08 pm -
Nonstop1h 16m
Deal found 9/7![United Airlines logo]()
$343
This American Airlines deal was found by Cheapflights users on 9/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:01 am -
1 stop5h 59m
Sun 10/114:45 pm -
1 stop4h 31m
Deal found 9/6![American Airlines logo]()
$709
This American Airlines deal was found by Cheapflights users on 9/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:14 am -
1 stop6h 07m
Sun 9/206:05 am -
1 stop6h 54m
Deal found 9/8![American Airlines logo]()
$752
This American Airlines deal was found by Cheapflights users on 9/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:57 am -
1 stop4h 24m
Sun 9/276:05 am -
1 stop6h 54m
Deal found 9/8![American Airlines logo]()
$888
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:57 am -
1 stop13h 05m
Sun 10/47:35 am -
1 stop13h 08m
Deal found 9/9![American Airlines logo]()
$977
This American Airlines deal was found by Cheapflights users on 9/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:57 am -
1 stop37h 05m
Mon 9/286:00 am -
1 stop27h 55m
Deal found 9/7![American Airlines logo]()
$1,047
This American Airlines deal was found by Cheapflights users on 9/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:57 am -
1 stop4h 24m
Mon 9/286:00 am -
1 stop3h 55m
Deal found 9/4![American Airlines logo]()
$1,341
Last-minute flights from Dulles Intl to DelawareDiscover last-minute flight deals from Dulles Intl to Delaware. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Delaware. Data last updated September 9, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 9/2110:27 am -
1 stop9h 28m
Fri 9/258:11 pm -
1 stop14h 06m
Deal found 9/6![Multiple Airlines logo]()
$422
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/259:04 pm -
1 stop10h 12m
Sat 9/2612:40 pm -
1 stop11h 30m
Deal found 9/4![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Sat 9/267:50 am -
1 stop15h 28m
Mon 9/2812:40 pm -
1 stop11h 30m
Deal found 9/5![Frontier logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:04 pm -
1 stop10h 12m
Thu 10/15:32 pm -
1 stop6h 38m
Deal found 9/4![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Fri 10/211:12 am -
1 stop12h 57m
Sat 10/35:32 pm -
1 stop6h 38m
Deal found 9/5![Frontier logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Sat 10/37:50 am -
1 stop15h 28m
Wed 10/75:32 pm -
1 stop6h 38m
Deal found 9/8![Frontier logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Tue 10/67:50 am -
1 stop10h 24m
Tue 10/138:30 am -
1 stop15h 51m
Deal found 9/8![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 10/711:12 am -
1 stop9h 14m
Wed 10/149:06 pm -
2 stops20h 07m
Deal found 9/8![Multiple Airlines logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:06 pm -
1 stop21h 09m
Mon 10/268:30 am -
1 stop8h 43m
Deal found 9/4![Frontier logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 10/2111:12 am -
2 stops11h 59m
Wed 10/285:22 pm -
1 stop6h 21m
Deal found 9/6![Frontier logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 10/227:54 am -
1 stop15h 49m
Thu 10/298:30 am -
1 stop8h 42m
Deal found 9/7![Frontier logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 9/7. 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.
Sat 10/317:52 am -
1 stop15h 14m
Tue 11/35:22 pm -
1 stop6h 21m
Deal found 9/7![Frontier logo]()
$171
One-way flights from Dulles Intl to DelawareSearch for one-way flight options from Dulles Intl to Delaware. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
Search for one-way flight options from Dulles Intl to Delaware. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/7. 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.
Tue 9/297:50 am -
1 stop23h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 10/711:12 am -
2 stops12h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$112
This Trip.com deal was found by Cheapflights users on 9/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:50 am -
1 stop23h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$129
This Trip.com deal was found by Cheapflights users on 9/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/99:06 pm -
1 stop26h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$143
This Trip.com deal was found by Cheapflights users on 9/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/168:46 am -
1 stop15h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Sun 10/49:04 pm -
1 stop26h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Tue 11/243:58 pm -
1 stop8h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 9/216:36 pm -
3 stops23h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$162
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Tue 9/298:30 am -
Nonstop1h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![United Airlines logo]()
$172
Find flight deals from Dulles Intl to Delaware
Keep the following information in mind while searching for Dulles Intl to Delaware flight deals. Data was last updated September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $127 (Kiwi.com) |
One-way from | $102 (Kiwi.com) |
Popular in | March |
Cheapest in | November |
Average price | $303 |
Cheapflights Fare Finder
Customize your flight search to find flights from Dulles Intl to Delaware 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 9, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Delaware that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Philadelphia
IAD Washington, D.C. Dulles Intl - PHL Philadelphia
IADPHL
Washington, D.C. Dulles Intl
Tue 9/29
7:50 am-7:16 am
1 stop23h 26m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$102
Washington, D.C.Philadelphia
IAD Washington, D.C. Dulles Intl - PHL Philadelphia
IADPHL
Washington, D.C. Dulles Intl
Sun 10/18
7:50 am-7:21 am
1 stop23h 31m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$129
Washington, D.C.Philadelphia
IAD Washington, D.C. Dulles Intl - PHL Philadelphia
IADPHL
Washington, D.C. Dulles Intl
Fri 10/9
9:06 pm-11:11 pm
1 stop26h 05m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$143
Washington, D.C.Philadelphia
IAD Washington, D.C. Dulles Intl - PHL Philadelphia
IADPHL
Washington, D.C. Dulles Intl
Sun 10/18
10:16 pm-11:30 pm
Nonstop1h 14m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$162
Washington, D.C.Philadelphia
IAD Washington, D.C. Dulles Intl - PHL Philadelphia
IADPHL
Washington, D.C. Dulles Intl
Tue 9/29
8:30 am-9:42 am
Nonstop1h 12m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$172
Quickest round-trip
Washington, D.C.Philadelphia
IAD Washington, D.C. Dulles Intl - PHL Philadelphia
IADPHL
Washington, D.C. Dulles Intl
Wed 12/16
8:30 am-9:39 am
Nonstop1h 09m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$172
Washington, D.C.Philadelphia
IAD Washington, D.C. Dulles Intl - PHL Philadelphia
IADPHL
Washington, D.C. Dulles Intl
Fri 10/9
8:30 am-9:43 am
Nonstop1h 13m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$172
Washington, D.C.Philadelphia
IAD Washington, D.C. Dulles Intl - PHL Philadelphia
IADPHL
Washington, D.C. Dulles Intl
Wed 10/7
1:05 pm-2:20 pm
Nonstop1h 15m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$207
Washington, D.C.Philadelphia
IAD Washington, D.C. Dulles Intl - PHL Philadelphia
IADPHL
Washington, D.C. Dulles Intl
Thu 9/24
1:05 pm-2:20 pm
Nonstop1h 15m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$234
Washington, D.C.Philadelphia
IAD Washington, D.C. Dulles Intl - PHL Philadelphia
IADPHL
Washington, D.C. Dulles Intl
Mon 9/21
6:13 pm-10:52 am
1 stop16h 39m
Philadelphia
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$245
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Best time to book a flight from Dulles Intl to Delaware
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IAD-PHL
IAD-SBY
Estimated round-trip price
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Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Delaware
IAD-USDE
IAD-PHL
IAD-SBY
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