$259 Cheap United flights Baton Rouge (BTR) to Washington (IAD)

View $259 flight on Wed, Oct 29, 2025Opens in a new window

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$259 Cheap United flights Baton Rouge (BTR) to Washington (IAD)

Prices were available within the past 7 days and start at $259 for one-way flights and $357 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Sep 18 - Sat, Sep 20
BTR
Baton Rouge
IAD
Washington
$357 Roundtrip, found 4 days ago
$357
Roundtrip
found 4 days ago
Select United flight, departing Thu, Sep 18 from Baton Rouge to Washington, returning Sat, Sep 20, priced at $357 found 4 days ago
United
Wed, May 27 - Sun, May 31
BTR
Baton Rouge
IAD
Washington
$358 Roundtrip, found 3 days ago
$358
Roundtrip
found 3 days ago
Select United flight, departing Wed, May 27 from Baton Rouge to Washington, returning Sun, May 31, priced at $358 found 3 days ago
United
Fri, Oct 31 - Sat, Nov 1
BTR
Baton Rouge
IAD
Washington
$359 Roundtrip, found 2 days ago
$359
Roundtrip
found 2 days ago
Select United flight, departing Fri, Oct 31 from Baton Rouge to Washington, returning Sat, Nov 1, priced at $359 found 2 days ago
United
Thu, Sep 18 - Sat, Sep 20
BTR
Baton Rouge
IAD
Washington
$361 Roundtrip, found 4 days ago
$361
Roundtrip
found 4 days ago
Select United flight, departing Thu, Sep 18 from Baton Rouge to Washington, returning Sat, Sep 20, priced at $361 found 4 days ago
United
Thu, Sep 18 - Sat, Sep 20
BTR
Baton Rouge
IAD
Washington
$363 Roundtrip, found 4 days ago
$363
Roundtrip
found 4 days ago
Select United flight, departing Thu, Sep 18 from Baton Rouge to Washington, returning Sat, Sep 20, priced at $363 found 4 days ago
United
Fri, Oct 31 - Sat, Nov 1
BTR
Baton Rouge
IAD
Washington
$365 Roundtrip, found 2 days ago
$365
Roundtrip
found 2 days ago
Select United flight, departing Fri, Oct 31 from Baton Rouge to Washington, returning Sat, Nov 1, priced at $365 found 2 days ago
Flights from Baton Rouge (BTR) to Washington (IAD)
Origin airport
Baton Rouge Metropolitan
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, United
Popular airline
United
Distance
969 mi

Frequently asked questions

How much is a United Airlines flight from Baton Rouge Metropolitan Airport (BTR) to Washington Dulles Intl. Airport (IAD)?
Scoring cheap one-way United Airlines flights from BTR to IAD from $259 on Expedia is simple — just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares from $357 for your next getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from BTR to IAD with United Airlines?
United Airlines flights to Washington are often cheaper in the quieter months of January and February. Whether you're in search of a one-way or a return ticket, you could land a better deal then.
What is the cheapest time to book flights from Baton Rouge Metropolitan Airport (BTR) to Washington Dulles Intl. Airport (IAD) with United Airlines?
Look for affordable United Airlines flights from Baton Rouge Metropolitan Airport (BTR) to Washington Dulles Intl. Airport (IAD) one to three months before your departure day. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare class and itinerary, the ideal day to book a domestic flight is generally Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Baton Rouge Metropolitan Airport (BTR) to Washington Dulles Intl. Airport (IAD)?
Fill in your dates, click search and check "Nonstop" on Expedia to browse any direct flights from BTR to IAD with United Airlines or another airline.
What is the earliest United Airlines flight from BTR to IAD?
Find United Airlines's earliest flights from BTR to IAD by checking the "Morning" and "Early Morning" filters. Not only will you arrive sooner, early departures also experience 20% fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Washington?
Take a United Airlines flight from Baton Rouge Metropolitan Airport (BTR) to Washington, and you'll most likely land at Washington Dulles Intl. Airport (IAD). This is the airline's main hub in this destination.
Why fly with United Airlines from BTR to IAD?
Travel from BTR to IAD with United Airlines and you'll enjoy a range of benefits including a rewarding loyalty program. When booking through Expedia as a United Mileage Plus and One Key™ member, you could also earn OneKeyCash™* to spend on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Baton Rouge Metropolitan Airport (BTR) to Washington Dulles Intl. Airport (IAD)?
Changes are often free within 24 hours of booking, but your airline may add a charge after that. For more details about modifying your reservation, head to your "Trips," select your flight and click on "Manage Booking." If you want the flexibility to adjust your plans without being charged, apply the "Changes included" and "No cancel fee" filters when planning your next trip.

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*Available to One Key members.