United Flight 618 Deals & Information (2026/2027)

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United Flight 618 Route Deals From $304

The cheapest prices found with in the last 7 days for return flights were $339 and $304 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jul 2 - Sat, Jul 11
BTV
Burlington Intl.
DEN
Denver Intl.
$339 Roundtrip, found 1 day ago
$339
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jul 2 from Burlington Intl. to Denver Intl., returning Sat, Jul 11, priced at $339 found 1 day ago
Tue, Jun 30 - Wed, Jul 8
BTV
Burlington Intl.
DEN
Denver Intl.
$357 Roundtrip, found 8 hours ago
$357
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Jun 30 from Burlington Intl. to Denver Intl., returning Wed, Jul 8, priced at $357 found 8 hours ago
Sat, Aug 29 - Sun, Sep 6
BTV
Burlington Intl.
DEN
Denver Intl.
$374 Roundtrip, found 1 day ago
$374
Roundtrip
found 1 day ago
Select United flight, departing Sat, Aug 29 from Burlington Intl. to Denver Intl., returning Sun, Sep 6, priced at $374 found 1 day ago
Fri, Jul 10 - Tue, Jul 14
BTV
Burlington Intl.
DEN
Denver Intl.
$377 Roundtrip, found 11 hours ago
$377
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Jul 10 from Burlington Intl. to Denver Intl., returning Tue, Jul 14, priced at $377 found 11 hours ago
Tue, Jun 30 - Wed, Jul 8
BTV
Burlington Intl.
DEN
Denver Intl.
$378 Roundtrip, found 8 hours ago
$378
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Jun 30 from Burlington Intl. to Denver Intl., returning Wed, Jul 8, priced at $378 found 8 hours ago
Tue, Jun 30 - Wed, Jul 8
BTV
Burlington Intl.
DEN
Denver Intl.
$379 Roundtrip, found 8 hours ago
$379
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Jun 30 from Burlington Intl. to Denver Intl., returning Wed, Jul 8, priced at $379 found 8 hours ago
Tue, Jun 30 - Wed, Jul 8
BTV
Burlington Intl.
DEN
Denver Intl.
$382 Roundtrip, found 8 hours ago
$382
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Jun 30 from Burlington Intl. to Denver Intl., returning Wed, Jul 8, priced at $382 found 8 hours ago
Tue, Jun 30 - Wed, Jul 8
BTV
Burlington Intl.
DEN
Denver Intl.
$383 Roundtrip, found 8 hours ago
$383
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Jun 30 from Burlington Intl. to Denver Intl., returning Wed, Jul 8, priced at $383 found 8 hours ago
Tue, Jun 30 - Wed, Jul 8
BTV
Burlington Intl.
DEN
Denver Intl.
$386 Roundtrip, found 8 hours ago
$386
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Jun 30 from Burlington Intl. to Denver Intl., returning Wed, Jul 8, priced at $386 found 8 hours ago
Tue, Jun 30 - Wed, Jul 8
BTV
Burlington Intl.
DEN
Denver Intl.
$390 Roundtrip, found 8 hours ago
$390
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Jun 30 from Burlington Intl. to Denver Intl., returning Wed, Jul 8, priced at $390 found 8 hours ago
Tue, Jun 30 - Wed, Jul 8
BTV
Burlington Intl.
DEN
Denver Intl.
$393 Roundtrip, found 8 hours ago
$393
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Jun 30 from Burlington Intl. to Denver Intl., returning Wed, Jul 8, priced at $393 found 8 hours ago
Fri, Jul 10 - Tue, Jul 14
BTV
Burlington Intl.
DEN
Denver Intl.
$398 Roundtrip, found 11 hours ago
$398
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Jul 10 from Burlington Intl. to Denver Intl., returning Tue, Jul 14, priced at $398 found 11 hours ago
Tue, Jun 30 - Wed, Jul 8
BTV
Burlington Intl.
DEN
Denver Intl.
$406 Roundtrip, found 8 hours ago
$406
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Jun 30 from Burlington Intl. to Denver Intl., returning Wed, Jul 8, priced at $406 found 8 hours ago
Tue, Jun 30 - Wed, Jul 8
BTV
Burlington Intl.
DEN
Denver Intl.
$407 Roundtrip, found 8 hours ago
$407
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Jun 30 from Burlington Intl. to Denver Intl., returning Wed, Jul 8, priced at $407 found 8 hours ago
Sat, Aug 29 - Sun, Sep 6
BTV
Burlington Intl.
DEN
Denver Intl.
$409 Roundtrip, found 1 day ago
$409
Roundtrip
found 1 day ago
Select United flight, departing Sat, Aug 29 from Burlington Intl. to Denver Intl., returning Sun, Sep 6, priced at $409 found 1 day ago
Tue, Jun 30 - Wed, Jul 8
BTV
Burlington Intl.
DEN
Denver Intl.
$411 Roundtrip, found 8 hours ago
$411
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Jun 30 from Burlington Intl. to Denver Intl., returning Wed, Jul 8, priced at $411 found 8 hours ago
Tue, Jun 30 - Wed, Jul 8
BTV
Burlington Intl.
DEN
Denver Intl.
$412 Roundtrip, found 8 hours ago
$412
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Jun 30 from Burlington Intl. to Denver Intl., returning Wed, Jul 8, priced at $412 found 8 hours ago
Tue, Jun 30 - Wed, Jul 8
BTV
Burlington Intl.
DEN
Denver Intl.
$413 Roundtrip, found 8 hours ago
$413
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Jun 30 from Burlington Intl. to Denver Intl., returning Wed, Jul 8, priced at $413 found 8 hours ago
Tue, Jun 30 - Wed, Jul 8
BTV
Burlington Intl.
DEN
Denver Intl.
$415 Roundtrip, found 8 hours ago
$415
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Jun 30 from Burlington Intl. to Denver Intl., returning Wed, Jul 8, priced at $415 found 8 hours ago

Frequently asked questions

What route does flight number UA618 take?
You'll be touching down at IAH from Seattle - Tacoma Intl. Airport (SEA) if you've booked a ticket on flight number UA618. You'll be in the sky for 4 hours and 14 minutes on this trip. It's also good to note that the flight conveniently travels non-stop.
What kind of plane is on flight number UA618?
There's a good chance you'll be on a Boeing 737-800 if you're traveling on flight number UA618. This flight typically jets off from Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) and comes in to land at IAH.
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 UA618 flight with Travelocity, please visit our Customer Service Portal.