$610 Cheap Flights from Washington (DCA) to Patna (PAT)

View $610 flight on Sat, Apr 4, 2026Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Patna (PAT)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Washington to Patna (DCA-PAT)

Prices were available within the past 7 days and start at $610 for one-way flights and $4,096 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Jun 16 - Sun, Jul 26
DCA
Washington
PAT
Patna
$4,096 Roundtrip, found 3 days ago
$4,096
Roundtrip
found 3 days ago
Select United flight, departing Tue, Jun 16 from Washington to Patna, returning Sun, Jul 26, priced at $4,096 found 3 days ago
United
Tue, Jun 16 - Sun, Jul 26
DCA
Washington
PAT
Patna
$7,021 Roundtrip, found 3 days ago
$7,021
Roundtrip
found 3 days ago
Select United flight, departing Tue, Jun 16 from Washington to Patna, returning Sun, Jul 26, priced at $7,021 found 3 days ago
United
Wed, Jun 17 - Sun, Jul 12
DCA
Washington
PAT
Patna
$8,191 Roundtrip, found 2 days ago
$8,191
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jun 17 from Washington to Patna, returning Sun, Jul 12, priced at $8,191 found 2 days ago
United
Wed, Jun 17 - Sun, Jul 12
DCA
Washington
PAT
Patna
$9,553 Roundtrip, found 2 days ago
$9,553
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jun 17 from Washington to Patna, returning Sun, Jul 12, priced at $9,553 found 2 days ago
United
Tue, Jun 16 - Sun, Jul 26
DCA
Washington
PAT
Patna
$10,837 Roundtrip, found 3 days ago
$10,837
Roundtrip
found 3 days ago
Select United flight, departing Tue, Jun 16 from Washington to Patna, returning Sun, Jul 26, priced at $10,837 found 3 days ago
United
Wed, Jun 17 - Sun, Jul 12
DCA
Washington
PAT
Patna
$16,382 Roundtrip, found 2 days ago
$16,382
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jun 17 from Washington to Patna, returning Sun, Jul 12, priced at $16,382 found 2 days ago
United
Wed, Jun 17 - Sun, Jul 12
DCA
Washington
PAT
Patna
$19,106 Roundtrip, found 2 days ago
$19,106
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jun 17 from Washington to Patna, returning Sun, Jul 12, priced at $19,106 found 2 days ago

The Annual Vacation Sale

Members save up to 40% on hotels and homes. Plan this year’s big trip and save.
Book now

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Patna Airport (PAT) cost?
Snag a cheap one-way flight from $610 or cheap return flight from $4,096 from Ronald Reagan Washington National Airport (DCA) to Patna Airport (PAT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Ronald Reagan Washington National Airport (DCA) to Patna Airport (PAT)?
June is the least expensive month to fly from DCA to PAT. Avoiding peak travel times is often the key to finding better deals on flights.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Patna Airport (PAT)?
To find the cheapest airline flying from DCA to PAT, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Patna Airport (PAT)?
There aren't any daily nonstop flights from Ronald Reagan Washington National Airport (DCA) to Patna Airport (PAT). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from DCA to PAT?
Generally you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Patna Airport (PAT)?
To touch down at Patna Airport (PAT) without delays, pick a flight that leaves from Ronald Reagan Washington National Airport (DCA) before 3 PM. The chance 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 Ronald Reagan Washington National Airport (DCA) to Patna Airport (PAT) last-minute?
Last-minute fares from DCA to PAT are typically more expensive. To lock in the lowest prices, start looking for flights early. That being said, if you're flexible with your travel dates, it's possible to find a cheap fare right before you leave.
Is it cheaper to book a DCA to PAT flight and hotel package?
Opting for a DCA to PAT flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of accommodations and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Patna Airport (PAT)?
It's usually possible to reschedule or cancel your DCA to PAT flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Patna
Roundtrip price
$4,095
Distance
7836 mi

Book with confidence

Washington to Patna Flights

The cheapest times to fly from Washington to Patna

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

 

The best time to book a flight from Washington to Patna

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

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 Patna in 2026. You can also book with separate airlines for your outbound and return journeys, from $610 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 Patna 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 Patna 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.

 

Washington to Patna Flights

*Flight schedules are subject to change.

Explore a world of travel with Expedia

*Available to One Key members.