HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$209+ Cheap flights from Mobile (MOB) 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 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
MOB — IAD
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Mobile 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 Mobile to Dulles Intl

Cheapest flights from Mobile to Dulles Intl
Explore the most affordable flight options available from Mobile to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.

This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2612:40 pm
MOB
-
IAD
Nonstop2h 23m
United Airlines
Sun 3/296:45 pm
IAD
-
MOB
Nonstop2h 46m
United Airlines
Deal found 2/11$209
This Delta deal was found by Cheapflights users on 2/12. 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 3/57:17 pm
MOB
-
IAD
1 stop4h 04m
Delta
Mon 3/97:29 pm
IAD
-
MOB
1 stop4h 59m
Delta
Deal found 2/12$229
This Delta deal was found by Cheapflights users on 2/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:17 pm
MOB
-
IAD
1 stop4h 04m
Delta
Sun 3/87:20 am
IAD
-
MOB
1 stop5h 35m
Delta
Deal found 2/11$239
This Delta deal was found by Cheapflights users on 2/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:48 pm
MOB
-
IAD
1 stop4h 39m
Delta
Mon 4/135:27 pm
IAD
-
MOB
1 stop6h 33m
Delta
Deal found 2/11$264
This Delta deal was found by Cheapflights users on 2/12. 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 2/267:17 pm
MOB
-
IAD
1 stop4h 04m
Delta
Sun 3/17:15 am
IAD
-
MOB
1 stop5h 43m
Delta
Deal found 2/12$269
This Delta deal was found by Cheapflights users on 2/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/267:17 pm
MOB
-
IAD
1 stop4h 04m
Delta
Mon 3/27:35 pm
IAD
-
MOB
1 stop4h 23m
Delta
Deal found 2/11$279
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2212:55 pm
MOB
-
IAD
Nonstop2h 30m
United Airlines
Tue 7/286:50 pm
IAD
-
MOB
Nonstop2h 41m
United Airlines
Deal found 2/11$281
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1712:40 pm
MOB
-
IAD
Nonstop2h 23m
United Airlines
Mon 3/236:45 pm
IAD
-
MOB
Nonstop2h 54m
United Airlines
Deal found 2/11$285
This Delta deal was found by Cheapflights users on 2/12. 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 4/26:15 am
MOB
-
IAD
1 stop4h 37m
Delta
Sun 4/57:29 pm
IAD
-
MOB
1 stop4h 59m
Delta
Deal found 2/12$294
This Delta deal was found by Cheapflights users on 2/12. 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.
Sat 2/216:00 am
MOB
-
IAD
1 stop4h 35m
Delta
Wed 2/256:00 am
IAD
-
MOB
1 stop6h 58m
Delta
Deal found 2/12$304

Find flight deals from Mobile to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Mobile (MOB) 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 February 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$209
(United Airlines)

Popular in

March

Cheapest in

February

Average price

$229

Good round-trip deal

$309 or less

Good one-way deal

$351 or less
Provider with most accurate pricing for Mobile-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Mobile-Washington, D.C. Dulles Intl flights.
Search Deals
From Mobile to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Mobile to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Mobile to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Mobile to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 13, 2026.
Use the filters below to find and compare flights from Mobile to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Mobile

Fly to

Dulles Intl

Route

Depart

Return

Price

MobileWashington, D.C.

MOB - IAD

MOBIAD

Mobile

Mon 3/23

6:48 pm-12:27 am

1 stop4h 39m

Washington, D.C. Dulles Intl

Tue 3/31

7:29 pm-11:28 pm

1 stop4h 59m

$229

MobileWashington, D.C.

MOB - IAD

MOBIAD

Mobile

Wed 7/22

9:10 am-4:39 pm

1 stop6h 29m

Washington, D.C. Dulles Intl

Tue 7/28

5:25 pm-10:55 pm

1 stop6h 30m

$229

MobileWashington, D.C.

MOB - IAD

MOBIAD

Mobile

Wed 3/4

4:05 pm-8:45 pm

1 stop3h 40m

Washington, D.C. Dulles Intl

Sun 3/8

7:20 am-11:55 am

1 stop5h 35m

$239

MobileWashington, D.C.

MOB - IAD

MOBIAD

Mobile

Thu 4/9

6:48 pm-12:27 am

1 stop4h 39m

Washington, D.C. Dulles Intl

Mon 4/13

5:27 pm-11:00 pm

1 stop6h 33m

$264

MobileWashington, D.C.

MOB - IAD

MOBIAD

Mobile

Thu 2/26

7:17 pm-12:21 am

1 stop4h 04m

Washington, D.C. Dulles Intl

Sun 3/1

7:15 am-11:58 am

1 stop5h 43m

$269

MobileWashington, D.C.

MOB - IAD

MOBIAD

Mobile

Fri 2/27

7:17 pm-12:21 am

1 stop4h 04m

Washington, D.C. Dulles Intl

Mon 3/2

7:35 pm-10:58 pm

1 stop4h 23m

$269

MobileWashington, D.C.

MOB - IAD

MOBIAD

Mobile

Wed 3/18

12:40 pm-4:03 pm

Nonstop2h 23m

Washington, D.C. Dulles Intl

Sat 3/21

6:45 pm-8:39 pm

Nonstop2h 54m

$279

MobileWashington, D.C.

MOB - IAD

MOBIAD

Mobile

Tue 3/17

12:40 pm-4:03 pm

Nonstop2h 23m

Washington, D.C. Dulles Intl

Mon 3/23

6:45 pm-8:39 pm

Nonstop2h 54m

$285

MobileWashington, D.C.

MOB - IAD

MOBIAD

Mobile

Thu 5/14

12:10 pm-3:36 pm

Nonstop2h 26m

$224

MobileWashington, D.C.

MOB - IAD

MOBIAD

Mobile

Fri 5/8

7:01 pm-12:46 am

1 stop4h 45m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 17 results
1
2
  • Most accurate provider: When it comes to deals on Mobile-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 Mobile-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Mobile-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 Mobile-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 Mobile-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 Mobile to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Mobile with our price prediction graph.
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 Mobile to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Mobile to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Mobile to Washington, D.C. Dulles Intl Airport (average of $74). Flying from Mobile to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $258). 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 MOB to IAD?

Find hourly flight availability from Mobile 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 February 13, 2026.

When flying from Mobile to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 February 13, 2026.
Read reviews from past customers who have flown United Airlines from Mobile to Washington, D.C. Dulles Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,283 reviews

Comfort

7.3

Boarding

7.7

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,283 reviews
United Airlines
7.4
Good
9,283 reviews

Comfort

7.3

Boarding

7.7

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Mobile to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Mobile to Washington, D.C. Dulles Intl?

    Mobile (MOB), located 11.8 mi from the city center, is the airport you fly out of when you book flights from Mobile to Washington, D.C. Dulles Intl. 1 airline have flights from Mobile to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Mobile to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 1 outbound flight to Washington, D.C. Dulles Intl per day.

  • How long is the flight from Mobile to Washington, D.C. Dulles Intl Airport?

    Airlines like Delta fly from Mobile to Washington, D.C. Dulles Intl Airport in about 4h 39m. The time it takes to get you to your destination can typically vary by up to . Mobile and Washington, D.C. Dulles Intl Airport are separated by a distance of 835 mi.

  • What is the cheapest airline to fly from Mobile to Washington, D.C. Dulles Intl Airport round-trip?

    Our cheapest airline available from Mobile to Washington, D.C. Dulles Intl Airport is United Airlines. Our recent data shows that you can find tickets from as low as $209 on this airline. You may be able to fly from Mobile to Washington, D.C. Dulles Intl Airport for 33% less than the average price by searching for this airline.

  • What are the cheapest flights from Mobile to Washington, D.C. Dulles Intl Airport?

    The cheapest flight price from Mobile to Washington, D.C. Dulles Intl Airport is $209. On average you can expect to pay $1,507. The most popular route, (Mobile - Washington, D.C. Dulles Intl), can usually be booked for $209.

  • Can I find deals for flights from Mobile to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Mobile to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Mobile to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Mobile to Dulles Intl.

  • Can I find deals for business class flights from Mobile to Dulles Intl?

    Yes. Cheapflights offers flight deals from Mobile to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Mobile to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Mobile to Washington, D.C. Dulles Intl Airport (average of $74). Flying from Mobile to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $258). 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.

See more FAQs

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 locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Laurel
Linthicum Heights
Rockville
Upper Marlboro
Manassas
Bowie
Largo
McLean
Clinton
Towson

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Mobile to Dulles Intl

Discover the top airline that operate flights from Mobile to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$209Average$310FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
Cookie settings©2026 Cheapflights