$625+ Cheap flights from Washington, D.C. (WAS) to Mongolia
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — UBN
Oct 26 — Nov 21
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Washington, D.C. to Mongolia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Washington, D.C. to Mongolia
Cheapest
Best
Last-minute
One-way
Cheapest flights from Washington, D.C. to MongoliaExplore the most affordable flight options available from Washington, D.C. to Mongolia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 26, 2026.
Explore the most affordable flight options available from Washington, D.C. to Mongolia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 26, 2026.
This Delta deal was found by Cheapflights users on 9/21. 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.
Mon 11/1612:32 pm -
2 stops32h 53m
Mon 11/2312:25 pm -
2 stops23h 56m
Deal found 9/21![Delta logo]()
$1,249
This FlightHub deal was found by Cheapflights users on 9/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:20 pm -
1 stop21h 05m
Tue 11/109:15 am -
1 stop39h 30m
Deal found 9/21![Turkish Airlines logo]()
$1,258
This FlightHub deal was found by Cheapflights users on 9/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/249:20 pm -
1 stop21h 05m
Thu 12/109:15 am -
1 stop39h 30m
Deal found 9/24![Turkish Airlines logo]()
$1,278
This Gotogate deal was found by Cheapflights users on 9/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/49:38 am -
2 stops25h 27m
Fri 12/2511:40 am -
1 stop19h 50m
Deal found 9/24![Multiple Airlines logo]()
$1,280
This Kiwi.com deal was found by Cheapflights users on 9/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2711:35 pm -
1 stop25h 40m
Sat 12/129:15 am -
1 stop23h 10m
Deal found 9/24![Multiple Airlines logo]()
$1,281
This Delta deal was found by Cheapflights users on 9/21. 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.
Mon 11/1610:15 am -
2 stops35h 10m
Mon 11/2312:25 pm -
2 stops24h 21m
Deal found 9/21![Delta logo]()
$1,294
This Delta deal was found by Cheapflights users on 9/24. 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 10/137:05 am -
2 stops40h 05m
Fri 10/231:00 pm -
2 stops22h 35m
Deal found 9/24![Delta logo]()
$1,294
This Delta deal was found by Cheapflights users on 9/24. 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.
Wed 11/256:10 am -
2 stops39h 15m
Wed 12/912:25 pm -
2 stops23h 16m
Deal found 9/24![Delta logo]()
$1,299
This Delta deal was found by Cheapflights users on 9/24. 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.
Wed 11/2511:50 am -
1 stop33h 35m
Wed 12/912:25 pm -
1 stop34h 25m
Deal found 9/24![Delta logo]()
$1,339
This Delta deal was found by Cheapflights users on 9/21. 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.
Wed 9/239:40 am -
2 stops25h 10m
Sat 10/171:00 pm -
2 stops22h 44m
Deal found 9/21![Delta logo]()
$1,344
This Delta deal was found by Cheapflights users on 9/21. 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.
Wed 9/236:10 am -
2 stops28h 40m
Sat 10/171:00 pm -
2 stops23h 42m
Deal found 9/21![Delta logo]()
$1,344
This Gotogate deal was found by Cheapflights users on 9/23. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/279:03 am -
2 stops26h 02m
Tue 9/2911:50 am -
1 stop19h 40m
Deal found 9/23![Multiple Airlines logo]()
$1,364
Best flights from Washington, D.C. to MongoliaDiscover carefully curated flight deals from Washington, D.C. to Mongolia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 26, 2026.
Discover carefully curated flight deals from Washington, D.C. to Mongolia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 26, 2026.
This Delta deal was found by Cheapflights users on 9/21. 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.
Mon 11/1612:32 pm -
2 stops32h 53m
Mon 11/2312:25 pm -
2 stops23h 56m
Deal found 9/21![Delta logo]()
$1,249
This FlightHub deal was found by Cheapflights users on 9/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/41:30 pm -
1 stop28h 55m
Thu 2/119:15 am -
1 stop23h 10m
Deal found 9/21![Turkish Airlines logo]()
$1,278
This CheapOair deal was found by Cheapflights users on 9/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/281:15 am -
2 stops27h 50m
Tue 11/1011:40 am -
1 stop19h 50m
Deal found 9/24![Multiple Airlines logo]()
$1,545
This FlightHub deal was found by Cheapflights users on 9/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2610:18 am -
2 stops41h 47m
Tue 12/86:45 am -
2 stops28h 14m
Deal found 9/24![Cathay Pacific logo]()
$1,733
This Delta deal was found by Cheapflights users on 9/21. 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.
Mon 11/1610:15 am -
2 stops35h 10m
Mon 11/2312:25 pm -
2 stops24h 21m
Deal found 9/21![Delta logo]()
$1,294
This Delta deal was found by Cheapflights users on 9/24. 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 11/266:10 am -
2 stops39h 15m
Thu 12/1012:25 pm -
2 stops22h 18m
Deal found 9/24![Delta logo]()
$1,294
This Delta deal was found by Cheapflights users on 9/24. 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.
Wed 11/256:10 am -
2 stops39h 15m
Wed 12/912:25 pm -
2 stops23h 16m
Deal found 9/24![Delta logo]()
$1,299
This FlightHub deal was found by Cheapflights users on 9/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:18 am -
2 stops41h 47m
Thu 12/106:45 am -
2 stops28h 14m
Deal found 9/24![Cathay Pacific logo]()
$1,756
This Delta deal was found by Cheapflights users on 9/23. 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.
Mon 10/126:05 am -
2 stops41h 05m
Fri 10/231:00 pm -
2 stops21h 49m
Deal found 9/23![Delta logo]()
$1,344
This Mytrip deal was found by Cheapflights users on 9/23. 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.
Mon 10/128:30 pm -
3 stops30h 35m
Fri 10/236:20 am -
2 stops66h 25m
Deal found 9/23![Multiple Airlines logo]()
$1,887
This Delta deal was found by Cheapflights users on 9/24. 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 11/2611:50 am -
1 stop33h 35m
Thu 12/1012:25 pm -
2 stops36h 24m
Deal found 9/24![Delta logo]()
$1,364
This Delta deal was found by Cheapflights users on 9/21. 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 2/46:30 pm -
2 stops26h 55m
Thu 2/1112:25 pm -
1 stop34h 25m
Deal found 9/21![Delta logo]()
$1,434
This Mytrip deal was found by Cheapflights users on 9/22. 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 2/44:00 pm -
3 stops23h 45m
Sat 2/137:45 am -
2 stops27h 53m
Deal found 9/22![Multiple Airlines logo]()
$2,202
This Delta deal was found by Cheapflights users on 9/22. 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 2/47:00 am -
2 stops38h 25m
Sat 2/1312:25 pm -
1 stop34h 25m
Deal found 9/22![Delta logo]()
$1,434
This Delta deal was found by Cheapflights users on 9/21. 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 2/411:00 am -
2 stops34h 25m
Thu 2/1112:25 pm -
2 stops39h 13m
Deal found 9/21![Delta logo]()
$1,444
This Mytrip deal was found by Cheapflights users on 9/21. 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 2/46:59 am -
2 stops30h 41m
Thu 2/117:30 am -
3 stops25h 28m
Deal found 9/21![Multiple Airlines logo]()
$2,405
This Delta deal was found by Cheapflights users on 9/22. 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 2/48:00 am -
2 stops37h 25m
Sat 2/1312:25 pm -
2 stops38h 25m
Deal found 9/22![Delta logo]()
$1,444
This Delta deal was found by Cheapflights users on 9/21. 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 12/246:00 am -
2 stops39h 25m
Thu 1/1412:25 pm -
2 stops24h 26m
Deal found 9/21![Delta logo]()
$1,744
This Globehunters deal was found by Cheapflights users on 9/21. 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:00 am -
2 stops46h 05m
Mon 11/236:45 am -
2 stops49h 30m
Deal found 9/21![Cathay Pacific logo]()
$5,896
Last-minute flights from Washington, D.C. to MongoliaDiscover last-minute flight deals from Washington, D.C. to Mongolia. Data last updated September 26, 2026 and is based on user searches.
Discover last-minute flight deals from Washington, D.C. to Mongolia. Data last updated September 26, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 9/23. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/279:03 am -
2 stops26h 02m
Tue 9/2911:50 am -
1 stop19h 40m
Deal found 9/23![Multiple Airlines logo]()
$1,364
This SmartFares deal was found by Cheapflights users on 9/22. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:57 pm -
2 stops41h 08m
Wed 10/1412:25 am -
2 stops35h 34m
Deal found 9/22![Multiple Airlines logo]()
$1,391
This FlightHub deal was found by Cheapflights users on 9/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:40 pm -
1 stop21h 40m
Thu 10/159:10 am -
1 stop38h 20m
Deal found 9/22![Turkish Airlines logo]()
$1,459
This KAYAK deal was found by Cheapflights users on 9/22. 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.
Thu 10/110:14 pm -
2 stops54h 31m
Thu 10/156:20 am -
2 stops27h 39m
Deal found 9/22![Cathay Pacific logo]()
$1,688
This Gotogate deal was found by Cheapflights users on 9/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/49:38 am -
2 stops25h 27m
Fri 12/2511:40 am -
1 stop19h 50m
Deal found 9/24![Multiple Airlines logo]()
$1,280
This Delta deal was found by Cheapflights users on 9/24. 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.
Sun 10/48:50 pm -
2 stops50h 20m
Fri 12/2512:25 pm -
2 stops24h 04m
Deal found 9/24![Delta logo]()
$1,344
This Delta deal was found by Cheapflights users on 9/24. 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.
Sun 10/47:17 pm -
2 stops51h 53m
Fri 12/2512:25 pm -
2 stops36h 51m
Deal found 9/24![Delta logo]()
$1,501
This Delta deal was found by Cheapflights users on 9/23. 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.
Mon 10/126:05 am -
2 stops41h 05m
Fri 10/231:00 pm -
2 stops21h 49m
Deal found 9/23![Delta logo]()
$1,344
This Delta deal was found by Cheapflights users on 9/24. 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 10/137:05 am -
2 stops40h 05m
Fri 10/231:00 pm -
2 stops22h 35m
Deal found 9/24![Delta logo]()
$1,294
This Gotogate deal was found by Cheapflights users on 9/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/131:15 pm -
1 stop30h 05m
Fri 10/2311:50 am -
1 stop19h 40m
Deal found 9/24![Multiple Airlines logo]()
$1,438
This FlightHub deal was found by Cheapflights users on 9/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/281:15 am -
2 stops37h 25m
Tue 11/106:20 pm -
2 stops39h 35m
Deal found 9/21![Multiple Airlines logo]()
$1,398
This FlightHub deal was found by Cheapflights users on 9/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:20 pm -
1 stop21h 05m
Tue 11/109:15 am -
1 stop39h 30m
Deal found 9/21![Turkish Airlines logo]()
$1,258
One-way flights from Washington, D.C. to MongoliaSearch for one-way flight options from Washington, D.C. to Mongolia. Find affordable one-way fares based on user searches. Data last updated September 26, 2026.
Search for one-way flight options from Washington, D.C. to Mongolia. Find affordable one-way fares based on user searches. Data last updated September 26, 2026.
This Booking.com deal was found by Cheapflights users on 9/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/47:02 am -
2 stops28h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$625
This Expedia deal was found by Cheapflights users on 9/24. 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.
Sat 10/105:00 pm -
2 stops42h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$736
This oojo deal was found by Cheapflights users on 9/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/291:30 pm -
1 stop28h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Turkish Airlines logo]()
$770
This Delta deal was found by Cheapflights users on 9/24. 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.
Sun 10/48:50 pm -
2 stops50h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Delta logo]()
$780
This Kiwi.com deal was found by Cheapflights users on 9/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:30 pm -
3 stops46h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$801
This Trip.com deal was found by Cheapflights users on 9/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:20 pm -
1 stop33h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$827
This Trip.com deal was found by Cheapflights users on 9/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/91:15 pm -
1 stop33h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Korean Air logo]()
$845
This CheapOair deal was found by Cheapflights users on 9/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:15 pm -
2 stops45h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Korean Air logo]()
$870
This KAYAK deal was found by Cheapflights users on 9/25. 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.
Wed 10/217:02 am -
2 stops45h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Cathay Pacific logo]()
$894
This United Airlines deal was found by Cheapflights users on 9/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/410:30 am -
3 stops46h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![United Airlines logo]()
$901
This FlightHub deal was found by Cheapflights users on 9/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:06 pm -
2 stops39h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Cathay Pacific logo]()
$922
This FlightHub deal was found by Cheapflights users on 9/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/411:31 am -
2 stops41h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Cathay Pacific logo]()
$982
Find flight deals from Washington, D.C. to Mongolia
Keep the following information in mind while searching for Washington, D.C. to Mongolia flight deals. Data was last updated September 26, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $1,249 (Delta) |
One-way from | $625 (Booking.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington, D.C. to Mongolia 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 7,457,451 searches. Data last updated September 26, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Mongolia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Ulaanbaatar
DCA Washington, D.C. Reagan-National - UBN Ulaanbaatar Chinggis Khaan
DCAUBN
Washington, D.C. Reagan-National
Sat 10/10
5:00 pm-11:05 pm
2 stops42h 05m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
$736
Washington, D.C.Ulaanbaatar
DCA Washington, D.C. Reagan-National - UBN Ulaanbaatar Chinggis Khaan
DCAUBN
Washington, D.C. Reagan-National
Sun 10/4
8:50 pm-11:10 am
2 stops50h 20m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
$780
Washington, D.C.Ulaanbaatar
IAD Washington, D.C. Dulles Intl - UBN Ulaanbaatar Chinggis Khaan
IADUBN
Washington, D.C. Dulles Intl
Sat 10/10
8:30 pm-7:20 am
3 stops46h 50m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
$801
Washington, D.C.Ulaanbaatar
IAD Washington, D.C. Dulles Intl - UBN Ulaanbaatar Chinggis Khaan
IADUBN
Washington, D.C. Dulles Intl
Wed 10/21
1:20 pm-11:10 am
1 stop33h 50m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
$827
Washington, D.C.Ulaanbaatar
IAD Washington, D.C. Dulles Intl - UBN Ulaanbaatar Chinggis Khaan
IADUBN
Washington, D.C. Dulles Intl
Fri 10/9
1:15 pm-11:10 am
1 stop33h 55m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
$845
Washington, D.C.Ulaanbaatar
IAD Washington, D.C. Dulles Intl - UBN Ulaanbaatar Chinggis Khaan
IADUBN
Washington, D.C. Dulles Intl
Wed 10/21
7:02 am-4:45 pm
2 stops45h 43m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
$894
Washington, D.C.Ulaanbaatar
IAD Washington, D.C. Dulles Intl - UBN Ulaanbaatar Chinggis Khaan
IADUBN
Washington, D.C. Dulles Intl
Sun 10/4
10:30 am-8:55 pm
3 stops46h 25m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
$901
Quickest round-trip
Washington, D.C.Ulaanbaatar
IAD Washington, D.C. Dulles Intl - UBN Ulaanbaatar Chinggis Khaan
IADUBN
Washington, D.C. Dulles Intl
Sat 10/10
1:15 pm-2:40 am
1 stop25h 25m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
$920
Washington, D.C.Ulaanbaatar
DCA Washington, D.C. Reagan-National - UBN Ulaanbaatar Chinggis Khaan
DCAUBN
Washington, D.C. Reagan-National
Wed 10/21
1:06 pm-4:45 pm
2 stops39h 39m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
$922
Washington, D.C.Ulaanbaatar
DCA Washington, D.C. Reagan-National - UBN Ulaanbaatar Chinggis Khaan
DCAUBN
Washington, D.C. Reagan-National
Sun 10/4
11:31 am-4:45 pm
2 stops41h 14m
Ulaanbaatar Chinggis Khaan
Wed 12/31
12:00 am-12:00 pm
Nonstop0h 00m
$982
Showing 1-10 of 36 resultsSorted by cheapest first
Best time to book a flight from Washington, D.C. to Mongolia
Have a flexible travel schedule? Discover the best time to fly to Mongolia from Washington, D.C. with our price prediction graph.
IAD-UBN
DCA-UBN
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.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. to Mongolia
WAS-MN0
IAD-UBN
DCA-UBN
What is the cheapest month to book a flight from Washington, D.C. to Mongolia?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Mongolia (average of $1,063). Flying from Washington, D.C. to Mongolia in May is currently the most expensive (average of $1,730). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Mongolia
Get insights into the airlines that provide service to Mongolia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Mongolia. Reviews last updated September 26, 2026.
See what other customers who have flown with Turkish Airlines from Washington, D.C. to Mongolia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
7.8
Overall
7.4
Boarding
7.3
Entertainment
7.5
Comfort
7.3
Food
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2026
SEA - IST
Crew
7.8
Overall
7.4
Boarding
7.3
Entertainment
7.5
Comfort
7.3
Food
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2026
SEA - IST
Related info for your journey
Find useful and relevant information for your journey from Washington, D.C. to Mongolia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Alternative routes for Washington, D.C. to Mongolia
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Mongolia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Washington, D.C. to Mongolia by cabin class
Find flights from Washington, D.C. to Mongolia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Washington, D.C. and Mongolia flights
Browse other Washington, D.C. and Mongolia flight options. Last updated on September 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Washington, D.C. to Mongolia flights
Consider these flights traveling from Washington, D.C. to Mongolia.
Top 4 airlines flying from Washington, D.C. to Mongolia
Discover the top 4 airlines that operate flights from Washington, D.C. to Mongolia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,025 | Average$1,461 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$1,032 | Average$1,558 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$1,255 | Average$1,645 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,341 | Average$1,716 | FlexibilityNo cancel fee | On-time81% |