$440 Cheap Flights from Washington (IAD) to Guwahati (GAU)

View $440 flight on Sat, Apr 4, 2026Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Guwahati (GAU-Lokpriya Gopinath Bordoloi Intl.)

Cheap Flights from Washington to Guwahati (IAD-GAU)

Prices were available within the past 7 days and start at $440 for one-way flights and $944 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air India
Fri, Sep 12 - Tue, Sep 23
IAD
Washington
GAU
Guwahati
$944 Roundtrip, just found
$944
Roundtrip
just found
Select Air India flight, departing Fri, Sep 12 from Washington to Guwahati, returning Tue, Sep 23, priced at $944 just found
Air India
Fri, Sep 5 - Fri, Sep 12
IAD
Washington
GAU
Guwahati
$949 Roundtrip, found 4 days ago
$949
Roundtrip
found 4 days ago
Select Air India flight, departing Fri, Sep 5 from Washington to Guwahati, returning Fri, Sep 12, priced at $949 found 4 days ago
Air India
Fri, Sep 12 - Fri, Sep 19
IAD
Washington
GAU
Guwahati
$952 Roundtrip, found 3 days ago
$952
Roundtrip
found 3 days ago
Select Air India flight, departing Fri, Sep 12 from Washington to Guwahati, returning Fri, Sep 19, priced at $952 found 3 days ago
Air India
Sun, Nov 2 - Thu, Nov 13
IAD
Washington
GAU
Guwahati
$976 Roundtrip, just found
$976
Roundtrip
just found
Select Air India flight, departing Sun, Nov 2 from Washington to Guwahati, returning Thu, Nov 13, priced at $976 just found
Air India
Fri, Sep 5 - Fri, Sep 12
IAD
Washington
GAU
Guwahati
$981 Roundtrip, found 4 days ago
$981
Roundtrip
found 4 days ago
Select Air India flight, departing Fri, Sep 5 from Washington to Guwahati, returning Fri, Sep 12, priced at $981 found 4 days ago
Air India
Fri, Sep 12 - Fri, Sep 19
IAD
Washington
GAU
Guwahati
$984 Roundtrip, found 3 days ago
$984
Roundtrip
found 3 days ago
Select Air India flight, departing Fri, Sep 12 from Washington to Guwahati, returning Fri, Sep 19, priced at $984 found 3 days ago
Air India
Fri, Apr 3 - Mon, Apr 20
IAD
Washington
GAU
Guwahati
$986 Roundtrip, found 3 days ago
$986
Roundtrip
found 3 days ago
Select Air India flight, departing Fri, Apr 3 from Washington to Guwahati, returning Mon, Apr 20, priced at $986 found 3 days ago
Air India
Fri, Sep 12 - Fri, Sep 19
IAD
Washington
GAU
Guwahati
$1,012 Roundtrip, found 3 days ago
$1,012
Roundtrip
found 3 days ago
Select Air India flight, departing Fri, Sep 12 from Washington to Guwahati, returning Fri, Sep 19, priced at $1,012 found 3 days ago
Virgin Atlantic
Mon, Oct 27 - Tue, Nov 11
IAD
Washington
GAU
Guwahati
$1,166 Roundtrip, just found
$1,166
Roundtrip
just found
Select Virgin Atlantic flight, departing Mon, Oct 27 from Washington to Guwahati, returning Tue, Nov 11, priced at $1,166 just found
Air Canada
Wed, Feb 4 - Wed, Feb 18
IAD
Washington
GAU
Guwahati
$1,178 Roundtrip, found 5 hours ago
$1,178
Roundtrip
found 5 hours ago
Select Air Canada flight, departing Wed, Feb 4 from Washington to Guwahati, returning Wed, Feb 18, priced at $1,178 found 5 hours ago
Flights from Washington (IAD) to Guwahati (GAU)
Origin airport
Washington Dulles Intl.
Destination airport
Lokpriya Gopinath Bordoloi Intl.
Airlines serving
Air India, Virgin Atlantic
Roundtrip price
$944
Distance
7885 mi

Washington to Guwahati Flights

The cheapest times to fly from Washington to Guwahati

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

 

The best time to book a flight from Washington to Guwahati

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

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 Guwahati in 2025. You can also book with separate airlines for your outbound and return journeys, from $440 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 Guwahati 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 Guwahati 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 Lokpriya Gopinath Bordoloi Intl. Airport (GAU) cost?
Discover the latest flight deals from IAD to GAU by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from IAD to GAU?
The cheapest flights from IAD to GAU are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from IAD to GAU?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from IAD to GAU. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Lokpriya Gopinath Bordoloi Intl. Airport (GAU)?
Direct flights from Washington Dulles Intl. Airport (IAD) to Lokpriya Gopinath Bordoloi Intl. Airport (GAU) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAD to GAU?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary based on a range of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Lokpriya Gopinath Bordoloi Intl. Airport (GAU)?
To reach Lokpriya Gopinath Bordoloi Intl. Airport (GAU) without delays, select a flight that takes off from Washington Dulles Intl. Airport (IAD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Lokpriya Gopinath Bordoloi Intl. Airport (GAU) last-minute?
Booking your flight from IAD to GAU just before your getaway is usually more expensive. But if there's some wiggle room with your itinerary, you could score a cheap last-minute fare.
Is it cheaper to book an IAD to GAU flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAD to GAU flight and hotel package with Expedia could result in significant savings. What's more, having everything in one easy place will take the stress out of travel planning. Simply secure your flights and select from our wide range of hotels, then tailor your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Lokpriya Gopinath Bordoloi Intl. Airport (GAU)?
In most instances, you can cancel or modify your IAD to GAU flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you want further details, go to our Customer Service portal.

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*Available to One Key members.