United Flight UA637 Deals & Information (2025/2026)

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United Flight 637 Route Deals From $101

The cheapest prices found with in the last 7 days for return flights were $229 and $101 for one-way flights to Austin-Bergstrom Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Nov 8 - Tue, Nov 11
IAD
Washington Dulles Intl.
AUS
Austin-Bergstrom Intl.
$229 Roundtrip, found 5 hours ago
$229
Roundtrip
found 5 hours ago
Select United flight, departing Sat, Nov 8 from Washington Dulles Intl. to Austin-Bergstrom Intl., returning Tue, Nov 11, priced at $229 found 5 hours ago
Sat, Nov 8 - Tue, Nov 11
IAD
Washington Dulles Intl.
AUS
Austin-Bergstrom Intl.
$235 Roundtrip, found 5 hours ago
$235
Roundtrip
found 5 hours ago
Select United flight, departing Sat, Nov 8 from Washington Dulles Intl. to Austin-Bergstrom Intl., returning Tue, Nov 11, priced at $235 found 5 hours ago
Sat, Nov 8 - Tue, Nov 11
IAD
Washington Dulles Intl.
AUS
Austin-Bergstrom Intl.
$239 Roundtrip, found 5 hours ago
$239
Roundtrip
found 5 hours ago
Select United flight, departing Sat, Nov 8 from Washington Dulles Intl. to Austin-Bergstrom Intl., returning Tue, Nov 11, priced at $239 found 5 hours ago
Sat, Nov 8 - Tue, Nov 11
IAD
Washington Dulles Intl.
AUS
Austin-Bergstrom Intl.
$249 Roundtrip, found 5 hours ago
$249
Roundtrip
found 5 hours ago
Select United flight, departing Sat, Nov 8 from Washington Dulles Intl. to Austin-Bergstrom Intl., returning Tue, Nov 11, priced at $249 found 5 hours ago
Sat, Nov 8 - Tue, Nov 11
IAD
Washington Dulles Intl.
AUS
Austin-Bergstrom Intl.
$275 Roundtrip, found 5 hours ago
$275
Roundtrip
found 5 hours ago
Select United flight, departing Sat, Nov 8 from Washington Dulles Intl. to Austin-Bergstrom Intl., returning Tue, Nov 11, priced at $275 found 5 hours ago
Sat, Nov 8 - Tue, Nov 11
IAD
Washington Dulles Intl.
AUS
Austin-Bergstrom Intl.
$279 Roundtrip, found 5 hours ago
$279
Roundtrip
found 5 hours ago
Select United flight, departing Sat, Nov 8 from Washington Dulles Intl. to Austin-Bergstrom Intl., returning Tue, Nov 11, priced at $279 found 5 hours ago
Wed, Oct 22 - Sun, Oct 26
IAD
Washington Dulles Intl.
AUS
Austin-Bergstrom Intl.
$301 Roundtrip, found 1 day ago
$301
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 22 from Washington Dulles Intl. to Austin-Bergstrom Intl., returning Sun, Oct 26, priced at $301 found 1 day ago
Sat, Oct 4 - Tue, Oct 7
IAD
Washington Dulles Intl.
AUS
Austin-Bergstrom Intl.
$302 Roundtrip, found 5 days ago
$302
Roundtrip
found 5 days ago
Select United flight, departing Sat, Oct 4 from Washington Dulles Intl. to Austin-Bergstrom Intl., returning Tue, Oct 7, priced at $302 found 5 days ago
Fri, Aug 1 - Sun, Aug 3
IAD
Washington Dulles Intl.
AUS
Austin-Bergstrom Intl.
$318 Roundtrip, found 1 day ago
$318
Roundtrip
found 1 day ago
Select United flight, departing Fri, Aug 1 from Washington Dulles Intl. to Austin-Bergstrom Intl., returning Sun, Aug 3, priced at $318 found 1 day ago
Wed, Oct 22 - Sun, Oct 26
IAD
Washington Dulles Intl.
AUS
Austin-Bergstrom Intl.
$329 Roundtrip, found 1 day ago
$329
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 22 from Washington Dulles Intl. to Austin-Bergstrom Intl., returning Sun, Oct 26, priced at $329 found 1 day ago

Frequently asked questions

What route does flight number UA637 take?
UA637 flies direct between DIA airport and Minneapolis - St. Paul Intl. Airport (MSP) in about 1 hour and 59 minutes. It can be used on other routes though, some of which may be multi-stop flights. Keep an eye out for this when locking in your seat to avoid any mix-ups.
What kind of plane is on flight number UA637?
UA637 is a flight number that serves multiple routes. If you're traveling on its most popular route, Denver Intl. Airport (DEN) to Wold--Chamberlain Field, there's a strong chance you'll be hopping aboard an Airbus A319.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your UA637 flight with Travelocity, please visit our Customer Service Portal.