$130+ Cheap flights from George Bush Intcntl (IAH) 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — IAD
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from George Bush Intcntl 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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Houston George Bush Intcntl to Washington, D.C. Dulles Intl are usually found in October or January, booked 74 days in advance, depart on a Friday or Wednesday and return on a Tuesday
Cheap flight deals from George Bush Intcntl to Dulles Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from George Bush Intcntl to Dulles IntlExplore the most affordable flight options available from George Bush Intcntl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
Explore the most affordable flight options available from George Bush Intcntl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 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 10/66:28 am -
1 stop9h 50m
Tue 10/1311:12 am -
2 stops12h 11m
Deal found 9/8![Frontier logo]()
$219
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:25 am -
1 stop10h 44m
Tue 9/299:04 pm -
1 stop11h 13m
Deal found 9/8![Frontier logo]()
$220
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:27 pm -
2 stops10h 16m
Fri 11/206:50 am -
1 stop11h 24m
Deal found 9/9![Frontier logo]()
$221
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:25 pm -
1 stop12h 52m
Mon 9/289:04 pm -
1 stop11h 13m
Deal found 9/8![Frontier logo]()
$222
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:05 am -
1 stop10h 08m
Sat 10/247:50 am -
1 stop15h 19m
Deal found 9/5![Frontier logo]()
$223
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:08 am -
1 stop10h 10m
Mon 10/59:04 pm -
1 stop11h 13m
Deal found 9/5![Frontier logo]()
$224
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:08 am -
1 stop10h 10m
Mon 10/51:50 pm -
2 stops9h 40m
Deal found 9/9![Frontier logo]()
$226
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/118:27 am -
1 stop10h 44m
Tue 10/139:06 pm -
1 stop11h 13m
Deal found 9/9![Frontier logo]()
$227
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:18 am -
2 stops14h 25m
Sun 11/19:06 pm -
1 stop11h 17m
Deal found 9/9![Frontier logo]()
$228
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/112:08 pm -
1 stop11h 02m
Tue 10/209:06 pm -
1 stop11h 13m
Deal found 9/6![Frontier logo]()
$229
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.
Mon 9/286:08 am -
1 stop10h 10m
Mon 9/289:04 pm -
1 stop11h 13m
Deal found 9/5![Frontier logo]()
$230
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/82:41 pm -
1 stop14h 39m
Mon 10/129:06 pm -
1 stop11h 13m
Deal found 9/5![Frontier logo]()
$231
Best flights from George Bush Intcntl to Dulles IntlDiscover carefully curated flight deals from George Bush Intcntl to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from George Bush Intcntl to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1410:27 am -
1 stop4h 56m
Sat 11/2111:25 am -
1 stop8h 18m
Deal found 9/8![Delta logo]()
$400
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.
Wed 12/26:10 pm -
1 stop16h 07m
Sat 12/52:24 pm -
Nonstop3h 37m
Deal found 9/9![United Airlines logo]()
$427
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.
Thu 11/58:38 pm -
Nonstop2h 59m
Sun 11/86:00 am -
Nonstop3h 37m
Deal found 9/8![United Airlines logo]()
$434
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.
Sun 11/227:22 am -
Nonstop3h 06m
Wed 11/256:00 am -
Nonstop3h 37m
Deal found 9/4![United Airlines logo]()
$441
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.
Thu 10/297:22 am -
Nonstop3h 06m
Mon 11/22:38 pm -
Nonstop3h 37m
Deal found 9/4![United Airlines logo]()
$497
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.
Sat 10/108:20 pm -
Nonstop3h 10m
Mon 10/1210:25 pm -
1 stop11h 01m
Deal found 9/6![United Airlines logo]()
$510
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.
Wed 12/26:28 pm -
Nonstop3h 08m
Sun 12/61:00 pm -
Nonstop3h 12m
Deal found 9/7![United Airlines logo]()
$531
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.
Tue 9/294:56 pm -
Nonstop3h 11m
Fri 10/26:15 am -
Nonstop3h 12m
Deal found 9/5![United Airlines logo]()
$549
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.
Thu 10/12:51 pm -
Nonstop3h 11m
Fri 10/23:02 pm -
Nonstop3h 16m
Deal found 9/5![United Airlines logo]()
$549
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.
Wed 9/237:20 am -
Nonstop3h 08m
Sat 9/268:30 am -
Nonstop3h 21m
Deal found 9/7![United Airlines logo]()
$555
Last-minute flights from George Bush Intcntl to Dulles IntlDiscover last-minute flight deals from George Bush Intcntl to Dulles Intl. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from George Bush Intcntl to Dulles Intl. Data last updated September 10, 2026 and is based on user searches.
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:25 am -
1 stop10h 44m
Tue 9/299:04 pm -
1 stop11h 13m
Deal found 9/8![Frontier logo]()
$220
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:25 pm -
1 stop12h 52m
Mon 9/289:04 pm -
1 stop11h 13m
Deal found 9/8![Frontier logo]()
$222
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.
Mon 9/286:08 am -
1 stop10h 10m
Mon 9/289:04 pm -
1 stop11h 13m
Deal found 9/5![Frontier logo]()
$230
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:08 am -
1 stop10h 10m
Mon 10/51:50 pm -
2 stops9h 40m
Deal found 9/9![Frontier logo]()
$226
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/112:08 pm -
1 stop11h 02m
Tue 10/209:06 pm -
1 stop11h 13m
Deal found 9/6![Frontier logo]()
$229
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:08 am -
1 stop10h 10m
Mon 10/59:04 pm -
1 stop11h 13m
Deal found 9/5![Frontier logo]()
$224
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 10/66:28 am -
1 stop9h 50m
Tue 10/1311:12 am -
2 stops12h 11m
Deal found 9/8![Frontier logo]()
$219
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/82:41 pm -
1 stop14h 39m
Mon 10/129:06 pm -
1 stop11h 13m
Deal found 9/5![Frontier logo]()
$231
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/118:27 am -
1 stop10h 44m
Tue 10/139:06 pm -
1 stop11h 13m
Deal found 9/9![Frontier logo]()
$227
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:05 am -
1 stop10h 08m
Sat 10/247:50 am -
1 stop15h 19m
Deal found 9/5![Frontier logo]()
$223
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:18 am -
2 stops14h 25m
Sun 11/19:06 pm -
1 stop11h 17m
Deal found 9/9![Frontier logo]()
$228
One-way flights from George Bush Intcntl to Dulles IntlSearch for one-way flight options from George Bush Intcntl to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from George Bush Intcntl to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:49 pm -
1 stop11h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$130
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 10/169:12 pm -
1 stop19h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$131
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 10/276:05 am -
2 stops27h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$132
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:12 pm -
1 stop25h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$133
This Super.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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:25 am -
1 stop10h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$134
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/215:26 pm -
1 stop27h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$135
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:25 am -
1 stop10h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$136
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/205:26 pm -
1 stop27h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$138
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:12 pm -
1 stop19h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$143
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:14 am -
2 stops15h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$144
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.
Fri 10/212:21 pm -
2 stops10h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$145
Find flight deals from George Bush Intcntl to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) 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 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $219 (Kiwi.com) |
One-way from | $130 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $373 |
Good round-trip deal | $490 or less |
Good one-way deal | $233 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from George Bush Intcntl 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 10, 2026.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport 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
HoustonWashington, D.C.
IAH Houston George Bush Intcntl - IAD Washington, D.C. Dulles Intl
IAHIAD
Houston George Bush Intcntl
Fri 11/6
8:38 pm-12:37 am
Nonstop2h 59m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$168
HoustonWashington, D.C.
IAH Houston George Bush Intcntl - IAD Washington, D.C. Dulles Intl
IAHIAD
Houston George Bush Intcntl
Thu 10/1
8:20 pm-12:30 am
Nonstop3h 10m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$187
HoustonWashington, D.C.
IAH Houston George Bush Intcntl - IAD Washington, D.C. Dulles Intl
IAHIAD
Houston George Bush Intcntl
Mon 11/9
8:38 pm-12:37 am
Nonstop2h 59m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$194
HoustonWashington, D.C.
IAH Houston George Bush Intcntl - IAD Washington, D.C. Dulles Intl
IAHIAD
Houston George Bush Intcntl
Wed 10/7
6:20 pm-12:42 am
1 stop5h 22m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$204
HoustonWashington, D.C.
IAH Houston George Bush Intcntl - IAD Washington, D.C. Dulles Intl
IAHIAD
Houston George Bush Intcntl
Mon 11/23
6:40 pm-10:44 pm
Nonstop3h 04m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$204
HoustonWashington, D.C.
IAH Houston George Bush Intcntl - IAD Washington, D.C. Dulles Intl
IAHIAD
Houston George Bush Intcntl
Mon 10/26
6:40 pm-10:44 pm
Nonstop3h 04m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$232
HoustonWashington, D.C.
IAH Houston George Bush Intcntl - IAD Washington, D.C. Dulles Intl
IAHIAD
Houston George Bush Intcntl
Tue 11/17
7:22 am-11:28 am
Nonstop3h 06m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$239
HoustonWashington, D.C.
IAH Houston George Bush Intcntl - IAD Washington, D.C. Dulles Intl
IAHIAD
Houston George Bush Intcntl
Sun 10/25
5:00 am-2:18 pm
1 stop8h 18m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$259
HoustonWashington, D.C.
IAH Houston George Bush Intcntl - IAD Washington, D.C. Dulles Intl
IAHIAD
Houston George Bush Intcntl
Tue 9/29
7:00 am-2:18 pm
1 stop6h 18m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$263
HoustonWashington, D.C.
IAH Houston George Bush Intcntl - IAD Washington, D.C. Dulles Intl
IAHIAD
Houston George Bush Intcntl
Mon 2/15
5:05 pm-9:12 pm
Nonstop3h 07m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$269
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from George Bush Intcntl 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 George Bush Intcntl 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 Houston George Bush Intcntl Airport-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 Houston George Bush Intcntl Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-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 Houston George Bush Intcntl Airport-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 Houston George Bush Intcntl Airport-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 George Bush Intcntl to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from George Bush Intcntl with our price prediction graph.
IAH-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 Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport
Prices
Airlines
How far ahead should I book a flight from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport?
The price you pay for your flight from Houston George Bush Intcntl Airport 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 72 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport?
Currently, October is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport (average of $339). Flying from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $602). 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 IAH to IAD?
Find hourly flight availability from George Bush Intcntl 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 10, 2026.
It’s optimal to fly from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport at noon. By choosing this option you can save up to 33% on the cost of your flight, compared to a flight in the evening.
What is the cheapest day to fly from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from George Bush Intcntl to Dulles Intl. Price data was last updated on September 5, 2026.
Travelers seeking maximum savings on their Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport flight should consider departing on Saturday at noon when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
The best insider tips for Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport trip
Our travel experts
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 10, 2026.
Peruse reviews from past customers who have flown with United Airlines and Frontier from Houston George Bush Intcntl Airport to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Entertainment
7.1
Boarding
7.7
Crew
8.1
Food
6.7
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Comfort
7.3
Entertainment
7.1
Boarding
7.7
Crew
8.1
Food
6.7
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Comfort
7.3
Entertainment
7.1
Boarding
7.7
Crew
8.1
Food
6.7
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Related info for your journey
Find useful and relevant information for your journey from George Bush Intcntl 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
Tysons
Lanham
Reston
Chantilly
Herndon
Rockville
Hyattsville
Fredericksburg
Woodbridge
Falls Church
Sterling
Hanover
Laurel
Oxon Hill
Clinton
Hunt Valley
Silver Spring
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George Bush Intcntl and Dulles Intl flights
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Top 2 airlines flying from George Bush Intcntl to Dulles Intl
Discover the top 2 airlines that operate flights from George Bush Intcntl 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 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$120 | Average$250 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$270 | Average$477 | FlexibilityNo cancel fee | On-time69% |