$119 Cheap Flights from Mobile (MOB) to Washington (IAD)

View $119 flight on Wed, Sep 10, 2025Opens in a new window

Popular airlines from Mobile Regional Airport (MOB) to Washington Dulles Intl. Airport (IAD)

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Cheap Flights from Mobile to Washington (MOB-IAD)

Prices were available within the past 7 days and start at $119 for one-way flights and $179 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Oct 23 - Tue, Oct 28
MOB
Mobile
IAD
Washington
$179 Roundtrip, found 5 days ago
$179
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Oct 23 from Mobile to Washington, returning Tue, Oct 28, priced at $179 found 5 days ago
American Airlines
Wed, Aug 13 - Wed, Aug 27
MOB
Mobile
IAD
Washington
$204 Roundtrip, found 5 days ago
$204
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Aug 13 from Mobile to Washington, returning Wed, Aug 27, priced at $204 found 5 days ago
United
Fri, Sep 12 - Mon, Sep 15
MOB
Mobile
IAD
Washington
$209 Roundtrip, found 2 hours ago
$209
Roundtrip
found 2 hours ago
Select United flight, departing Fri, Sep 12 from Mobile to Washington, returning Mon, Sep 15, priced at $209 found 2 hours ago
American Airlines
Tue, Sep 30 - Tue, Oct 7
MOB
Mobile
IAD
Washington
$214 Roundtrip, found 4 days ago
$214
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Sep 30 from Mobile to Washington, returning Tue, Oct 7, priced at $214 found 4 days ago
United
Fri, Sep 12 - Mon, Sep 15
MOB
Mobile
IAD
Washington
$219 Roundtrip, found 2 hours ago
$219
Roundtrip
found 2 hours ago
Select United flight, departing Fri, Sep 12 from Mobile to Washington, returning Mon, Sep 15, priced at $219 found 2 hours ago
United
Fri, Sep 19 - Sun, Sep 21
MOB
Mobile
IAD
Washington
$227 Roundtrip, found 2 days ago
$227
Roundtrip
found 2 days ago
Select United flight, departing Fri, Sep 19 from Mobile to Washington, returning Sun, Sep 21, priced at $227 found 2 days ago
Delta
Sat, Sep 13 - Mon, Sep 15
MOB
Mobile
IAD
Washington
$229 Roundtrip, just found
$229
Roundtrip
just found
Select Delta flight, departing Sat, Sep 13 from Mobile to Washington, returning Mon, Sep 15, priced at $229 just found
United
Wed, Aug 13 - Wed, Aug 20
MOB
Mobile
IAD
Washington
$229 Roundtrip, found 1 day ago
$229
Roundtrip
found 1 day ago
Select United flight, departing Wed, Aug 13 from Mobile to Washington, returning Wed, Aug 20, priced at $229 found 1 day ago
United
Tue, Sep 30 - Tue, Oct 7
MOB
Mobile
IAD
Washington
$231 Roundtrip, found 4 days ago
$231
Roundtrip
found 4 days ago
Select United flight, departing Tue, Sep 30 from Mobile to Washington, returning Tue, Oct 7, priced at $231 found 4 days ago
United
Thu, Sep 4 - Sat, Sep 6
MOB
Mobile
IAD
Washington
$236 Roundtrip, found 21 hours ago
$236
Roundtrip
found 21 hours ago
Select United flight, departing Thu, Sep 4 from Mobile to Washington, returning Sat, Sep 6, priced at $236 found 21 hours ago

Find the cheapest month to fly from Mobile (MOB) to Washington (IAD)

October is typically the cheapest month to fly

From $194 - $554 per traveler.

Graph displaying average flight prices per month

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $239
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $239
Flights from Mobile (MOB) to Washington (IAD)
Origin airport
Mobile Regional
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$178
Distance
836 mi
Average flight time
3 hours 25 mins

Mobile to Washington Flights

The cheapest times to fly from Mobile to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Mobile to Washington are during the month of October. You can find some of the cheapest flights from Mobile to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Mobile to Washington

Sunday is one of the best days to book for cheap flights from Mobile to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Mobile to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Mobile to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $119 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Mobile to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Mobile to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Mobile Regional Airport (MOB) to Washington Dulles Intl. Airport (IAD) cost?
Cheap return fares from Mobile Regional Airport (MOB) to Washington Dulles Intl. Airport (IAD) start from $209. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United flight leaving MOB on August 9 2025 and touching down at IAD. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from MOB to IAD?
The cheapest flights from MOB to IAD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Mobile Regional Airport (MOB) to Washington Dulles Intl. Airport (IAD)?
When flying out of Mobile Regional Airport (MOB), you can jump on a direct flight to Washington Dulles Intl. Airport (IAD) with United Airlines.
What is the cheapest airline that flies from MOB to IAD?
Right now, the cheapest airline offering one-way flights from MOB to IAD is United. You can book a seat on this route from $224. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from MOB on October 8 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Mobile Regional Airport (MOB) to Washington Dulles Intl. Airport (IAD)?
With, on average, 2 direct flights departing from Mobile Regional Airport (MOB) to Washington Dulles Intl. Airport (IAD) each day, you'll be taking off on vacation soon enough.
What are the most popular departure times for flights from Mobile Regional Airport (MOB) to Washington Dulles Intl. Airport (IAD)?
The 8 AM departures from MOB to IAD are the busiest. Prices can be higher for these popular slots. If you're hoping to save money, choose a less crowded time to fly.
What day of the week has the most flights from MOB to IAD?
If you depart on a Friday, you'll get the largest range of options for flights from Mobile Regional Airport (MOB) to Washington Dulles Intl. Airport (IAD).
What is the earliest flight from Mobile Regional Airport (MOB) to Washington Dulles Intl. Airport (IAD)?
Mobile Regional Airport (MOB)'s first flight to Washington Dulles Intl. Airport (IAD) departs at approximately 8:00AM UTC-6. With a travel time of 2h 21m, you'll arrive at around 11:21AM UTC-5.
How long does it take to fly from Mobile Regional Airport (MOB) to Washington Dulles Intl. Airport (IAD)?
The average flight duration from MOB to IAD is 2 hours and 21 minutes, covering a distance of 840 mi.
What airline has the least delays from MOB to IAD?
Consider booking with United Airlines if you'd like to fly straight from Mobile Regional Airport (MOB) to Washington Dulles Intl. Airport (IAD) without any delays. This airline has the strongest track record for punctuality, with an on-time performance of 88%. Want to be notified if anything changes? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Mobile Regional Airport (MOB) to Washington Dulles Intl. Airport (IAD)?
To avoid possible delays on the Mobile Regional Airport (MOB) to Washington Dulles Intl. Airport (IAD) route, aim to travel before 3 PM. Flights after this time have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Washington from Mobile Regional Airport (MOB)?
If you've booked a direct flight from Mobile Regional Airport (MOB) to Washington, Washington Dulles Intl. Airport (IAD) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Mobile Regional Airport (MOB) to Washington Dulles Intl. Airport (IAD) last-minute?
Waiting until right before your break to book your flight from MOB to IAD often results in higher prices. While you may find some last-minute deals, there's no guarantee. Keep your travel plans flexible for the best chance of getting a bargain.
Is it cheaper to book a MOB to IAD flight and hotel package?
You can save money by securing a MOB to IAD flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've chosen your preferred accommodations and flights, you can add extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Mobile Regional Airport (MOB) to Washington Dulles Intl. Airport (IAD)?
If you reserved your MOB to IAD flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

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*Available to One Key members.