$154 Cheap Flights from Washington (IAD) to Mobile (MOB)

View $154 flight on Thu, May 29, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key
Find available prices by choosing your travel dates.

Cheap Flights from Washington to Mobile (IAD-MOB)

Prices were available within the past 7 days and start at $154 for one-way flights and $205 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, May 29 - Sun, Jun 1
IAD
Washington
MOB
Mobile
$205 Roundtrip, just found
$205
Roundtrip
just found
Select United flight, departing Thu, May 29 from Washington to Mobile, returning Sun, Jun 1, priced at $205 just found
United
Thu, May 29 - Sun, Jun 1
IAD
Washington
MOB
Mobile
$215 Roundtrip, just found
$215
Roundtrip
just found
Select United flight, departing Thu, May 29 from Washington to Mobile, returning Sun, Jun 1, priced at $215 just found
American Airlines
Sat, Jul 19 - Sat, Jul 26
IAD
Washington
MOB
Mobile
$224 Roundtrip, found 3 hours ago
$224
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Sat, Jul 19 from Washington to Mobile, returning Sat, Jul 26, priced at $224 found 3 hours ago
Delta
Wed, Nov 5 - Wed, Nov 12
IAD
Washington
MOB
Mobile
$224 Roundtrip, found 1 hour ago
$224
Roundtrip
found 1 hour ago
Select Delta flight, departing Wed, Nov 5 from Washington to Mobile, returning Wed, Nov 12, priced at $224 found 1 hour ago
United
Thu, May 29 - Sun, Jun 1
IAD
Washington
MOB
Mobile
$225 Roundtrip, just found
$225
Roundtrip
just found
Select United flight, departing Thu, May 29 from Washington to Mobile, returning Sun, Jun 1, priced at $225 just found
United
Sat, Aug 30 - Wed, Sep 3
IAD
Washington
MOB
Mobile
$226 Roundtrip, found 2 days ago
$226
Roundtrip
found 2 days ago
Select United flight, departing Sat, Aug 30 from Washington to Mobile, returning Wed, Sep 3, priced at $226 found 2 days ago
United
Sun, Jun 15 - Sat, Jun 21
IAD
Washington
MOB
Mobile
$229 Roundtrip, found 6 days ago
$229
Roundtrip
found 6 days ago
Select United flight, departing Sun, Jun 15 from Washington to Mobile, returning Sat, Jun 21, priced at $229 found 6 days ago
United
Fri, Jun 6 - Sun, Jun 22
IAD
Washington
MOB
Mobile
$232 Roundtrip, found 16 hours ago
$232
Roundtrip
found 16 hours ago
Select United flight, departing Fri, Jun 6 from Washington to Mobile, returning Sun, Jun 22, priced at $232 found 16 hours ago
Delta
Tue, May 13 - Fri, May 30
IAD
Washington
MOB
Mobile
$234 Roundtrip, found 5 hours ago
$234
Roundtrip
found 5 hours ago
Select Delta flight, departing Tue, May 13 from Washington to Mobile, returning Fri, May 30, priced at $234 found 5 hours ago
United
Thu, May 29 - Sun, Jun 1
IAD
Washington
MOB
Mobile
$235 Roundtrip, just found
$235
Roundtrip
just found
Select United flight, departing Thu, May 29 from Washington to Mobile, returning Sun, Jun 1, priced at $235 just found
Flights from Washington (IAD) to Mobile (MOB)
Origin airport
Washington Dulles Intl.
Destination airport
Mobile Regional
Airlines serving
American Airlines, Delta, United
Roundtrip price
$204
Distance
836 mi

Washington to Mobile Flights

The cheapest times to fly from Washington to Mobile

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 Washington to Mobile are during the month of May. You can find some of the cheapest flights from Washington to Mobile with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Washington to Mobile

Sunday is one of the best days to book for cheap flights from Washington to Mobile: 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 Washington to Mobile

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 Washington to Mobile in 2025. You can also book with separate airlines for your outbound and return journeys, from $154 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 Washington to Mobile 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 Washington to Mobile 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 Washington Dulles Intl. Airport (IAD) to Mobile Regional Airport (MOB) cost?
Cheap round-trip fares from Washington Dulles Intl. Airport (IAD) to Mobile Regional Airport (MOB) start at $205. 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 IAD on May 20 2025 and touching down at MOB. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from IAD to MOB?
The cheapest flights from IAD to MOB 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 Washington Dulles Intl. Airport (IAD) to Mobile Regional Airport (MOB)?
You can travel nonstop from Washington Dulles Intl. Airport (IAD) to Mobile Regional Airport (MOB) on a United Airlines flight.
What is the cheapest airline that flies from IAD to MOB?
Right now, the cheapest carrier operating one-way flights from IAD to MOB is United. You can take off 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 IAD on July 7 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Mobile Regional Airport (MOB)?
Daily, an average of 2 direct flights operate from Washington Dulles Intl. Airport (IAD) to Mobile Regional Airport (MOB). Pick the departure time that best suits your travel plans.
What are the most popular departure times for flights from Washington Dulles Intl. Airport (IAD) to Mobile Regional Airport (MOB)?
Flights between IAD and MOB are their busiest at 8 AM. For a quieter experience and possibly cheaper fares, choose a time outside the usual busy windows.
What day of the week has the most flights from IAD to MOB?
Depart on a Friday if you’re after the largest selection of flights from Washington Dulles Intl. Airport (IAD) to Mobile Regional Airport (MOB).
What is the earliest flight from Washington Dulles Intl. Airport (IAD) to Mobile Regional Airport (MOB)?
Hop on the earliest flight at around 8:30AM UTC-5, heading out of Washington Dulles Intl. Airport (IAD). You’ll be in the air for around 2h 47m, arriving at Mobile Regional Airport (MOB) at approximately 10:17AM UTC-6.
How long does it take to fly from Washington Dulles Intl. Airport (IAD) to Mobile Regional Airport (MOB)?
Flights from IAD to MOB have an average travel time of 2 hours and 49 minutes. The distance between the two is 840 mi.
What airline has the least delays from IAD to MOB?
Consider traveling with United Airlines if you’d like to fly straight from Washington Dulles Intl. Airport (IAD) to Mobile Regional Airport (MOB) without any holdups. This airline has the best track record for punctuality, with an on-time score of 81%. Want to be updated if anything changes? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Mobile Regional Airport (MOB)?
To touch down at Mobile Regional Airport (MOB) without delays, select a flight that leaves Washington Dulles Intl. Airport (IAD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Mobile from Washington Dulles Intl. Airport (IAD)?
Mobile Regional Airport (MOB) is the only airport in Mobile with direct flights from Washington Dulles Intl. Airport (IAD). Compare your options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Mobile Regional Airport (MOB) last-minute?
Waiting until right before your break to book a ticket from IAD to MOB generally means paying more. While you may come across some last-minute deals, there’s no guarantee. Keep your travel plans flexible to maximize your chances of scoring a bargain.
Is it cheaper to book an IAD to MOB flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAD to MOB flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one place will take the stress out of travel planning. Simply secure your flights and select from our extensive range of hotels, then personalize your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Mobile Regional Airport (MOB)?
In most instances, you’re able to cancel or reschedule your IAD to MOB flight. However, there may be additional fees, especially if your booking was made over 24 hours ago. Check your itinerary for the airline’s guidelines and fees on flight changes, or if you want further details, visit our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.