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$627+ Cheap flights from Reagan-National (DCA) to Busan (PUS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — PUS
Mar 16 — Mar 231
Mon 3/16
Mon 3/23
1 adult, Economy
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Cheap flight deals from Reagan-National to Busan

Cheapest flights from Reagan-National to Busan
Explore the most affordable flight options available from Reagan-National to Busan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 14, 2026.

This Expedia deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:59 pm
DCA
-
PUS
2 stops56h 41m
Multiple Airlines
Fri 2/276:55 pm
PUS
-
DCA
2 stops37h 04m
Multiple Airlines
Deal found 2/11$1,518
This KAYAK deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:59 pm
DCA
-
PUS
2 stops34h 01m
Multiple Airlines
Fri 8/147:10 pm
PUS
-
DCA
2 stops35h 49m
Multiple Airlines
Deal found 2/9$1,651
This Delta deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:00 am
DCA
-
PUS
2 stops22h 45m
Delta
Tue 11/177:00 am
PUS
-
DCA
2 stops22h 14m
Delta
Deal found 2/12$1,675
This Korean Air deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/65:00 pm
DCA
-
PUS
2 stops25h 45m
Korean Air
Wed 9/98:00 am
PUS
-
DCA
2 stops22h 07m
Korean Air
Deal found 2/12$1,680
This Delta deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3010:00 am
DCA
-
PUS
2 stops21h 45m
Delta
Mon 8/37:00 am
PUS
-
DCA
2 stops21h 07m
Delta
Deal found 2/13$1,730
This Delta deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:14 am
DCA
-
PUS
2 stops25h 31m
Delta
Wed 3/184:10 pm
PUS
-
DCA
2 stops37h 12m
Delta
Deal found 2/10$1,787
This Mytrip deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:59 am
DCA
-
PUS
2 stops24h 31m
Multiple Airlines
Mon 8/38:00 pm
PUS
-
DCA
3 stops29h 00m
Multiple Airlines
Deal found 2/10$1,812
This Delta deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:14 am
DCA
-
PUS
2 stops25h 31m
Delta
Fri 3/207:55 am
PUS
-
DCA
2 stops28h 44m
Delta
Deal found 2/10$1,837
This Delta deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:14 am
DCA
-
PUS
2 stops25h 31m
Delta
Sat 3/2110:25 am
PUS
-
DCA
2 stops36h 55m
Delta
Deal found 2/10$1,843
This Mytrip deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/811:05 am
DCA
-
PUS
3 stops34h 45m
Multiple Airlines
Sat 3/1411:05 am
PUS
-
DCA
2 stops23h 51m
Multiple Airlines
Deal found 2/13$1,864

Find flight deals from Reagan-National to Busan

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Busan (PUS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,518
(Expedia)

One-way from

$627
(Kiwi.com)
Provider with most accurate pricing for Washington, D.C. Reagan-National-Busan Gimhae flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Busan Gimhae flights.
Search Deals
From Washington, D.C. Reagan-National to Busan Gimhae
Search Deals
One-way flight from Washington, D.C. Reagan-National to Busan Gimhae
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to Busan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 14, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Busan that are best for you.

Fly from

Reagan-National

Fly to

Busan

Route

Depart

Return

Price

Washington, D.C.Busan

DCA - PUS

DCAPUS

Washington, D.C. Reagan-National

Mon 2/23

6:59 pm-5:40 pm

2 stops56h 41m

Busan Gimhae

Fri 2/27

6:55 pm-5:59 pm

2 stops37h 04m

$1,518

Washington, D.C.Busan

DCA - PUS

DCAPUS

Washington, D.C. Reagan-National

Fri 7/31

6:59 pm-6:00 pm

2 stops34h 01m

Busan Gimhae

Fri 8/14

7:10 pm-5:59 pm

2 stops35h 49m

$1,651

Washington, D.C.Busan

DCA - PUS

DCAPUS

Washington, D.C. Reagan-National

Thu 7/30

7:00 am-6:20 pm

2 stops22h 20m

Busan Gimhae

Mon 8/3

7:00 am-5:23 pm

2 stops23h 23m

$1,730

Washington, D.C.Busan

DCA - PUS

DCAPUS

Washington, D.C. Reagan-National

Thu 3/12

6:14 am-8:45 pm

2 stops25h 31m

Busan Gimhae

Wed 3/18

4:10 pm-4:22 pm

2 stops37h 12m

$1,787

Washington, D.C.Busan

DCA - PUS

DCAPUS

Washington, D.C. Reagan-National

Thu 3/12

6:14 am-8:45 pm

2 stops25h 31m

Busan Gimhae

Thu 3/19

12:00 pm-10:42 pm

2 stops23h 42m

$1,787

Washington, D.C.Busan

DCA - PUS

DCAPUS

Washington, D.C. Reagan-National

Thu 7/30

6:00 am-8:30 pm

3 stops25h 30m

Busan Gimhae

Mon 8/3

8:00 pm-12:00 pm

3 stops29h 00m

$1,816

Washington, D.C.Busan

DCA - PUS

DCAPUS

Washington, D.C. Reagan-National

Thu 3/12

6:14 am-8:45 pm

2 stops25h 31m

Busan Gimhae

Sat 3/21

10:25 am-10:20 am

2 stops36h 55m

$1,843

Washington, D.C.Busan

DCA - PUS

DCAPUS

Washington, D.C. Reagan-National

Sun 3/8

11:05 am-10:50 am

3 stops34h 45m

Busan Gimhae

Sat 3/14

11:05 am-9:56 pm

2 stops23h 51m

$1,864

Washington, D.C.Busan

DCA - PUS

DCAPUS

Washington, D.C. Reagan-National

Mon 4/20

7:00 am-8:35 pm

3 stops48h 35m

$627

Washington, D.C.Busan

DCA - PUS

DCAPUS

Washington, D.C. Reagan-National

Fri 3/27

8:40 pm-7:35 pm

3 stops33h 55m

$1,214

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 11 results
1
2
  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Busan flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Busan flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Busan flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Busan flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Busan flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Reagan-National to Busan

Have a flexible travel schedule? Discover the best time to fly to Busan from Reagan-National with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Busan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Busan from Washington, D.C. Reagan-National?

    Located just 7.2 mi from the city center, Busan Gimhae is the airport most travelers will use when flying to Busan from Washington, D.C. Reagan-National. Booking flights from Washington, D.C. Reagan-National to Gimhae (PUS) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Reagan-National from 0 different airlines.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Busan?

    A quick flight from Washington, D.C. Reagan-National Airport to Busan can take about 22h 20m. Delta provides one of the quickest options available for as low as $1,730. The distance between Washington, D.C. Reagan-National Airport and Busan is about 7055 mi.

  • Can I find deals for flights from Reagan-National to Busan that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Busan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Busan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Busan.

  • Can I find deals for business class flights from Reagan-National to Busan?

    Yes. Cheapflights offers flight deals from Reagan-National to Busan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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