United Flight 2155 Deals & Information (2026/2027)

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United Flight 2155 Route Deals From $269

The cheapest prices found with in the last 7 days for return flights were $249 and $269 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Oct 13 - Sun, Oct 18
IDA
Idaho Falls Regional
DEN
Denver Intl.
$249 Roundtrip, found 1 day ago
$249
Roundtrip
found 1 day ago
Select United flight, departing Tue, Oct 13 from Idaho Falls Regional to Denver Intl., returning Sun, Oct 18, priced at $249 found 1 day ago
Sat, May 30 - Sat, Jun 6
IDA
Idaho Falls Regional
DEN
Denver Intl.
$264 Roundtrip, found 4 days ago
$264
Roundtrip
found 4 days ago
Select United flight, departing Sat, May 30 from Idaho Falls Regional to Denver Intl., returning Sat, Jun 6, priced at $264 found 4 days ago
Sat, May 30 - Sat, Jun 6
IDA
Idaho Falls Regional
DEN
Denver Intl.
$272 Roundtrip, found 4 days ago
$272
Roundtrip
found 4 days ago
Select United flight, departing Sat, May 30 from Idaho Falls Regional to Denver Intl., returning Sat, Jun 6, priced at $272 found 4 days ago
Wed, Jul 22 - Sun, Jul 26
IDA
Idaho Falls Regional
DEN
Denver Intl.
$278 Roundtrip, found 3 days ago
$278
Roundtrip
found 3 days ago
Select United flight, departing Wed, Jul 22 from Idaho Falls Regional to Denver Intl., returning Sun, Jul 26, priced at $278 found 3 days ago
Sat, May 30 - Sun, May 31
IDA
Idaho Falls Regional
DEN
Denver Intl.
$279 Roundtrip, found 4 days ago
$279
Roundtrip
found 4 days ago
Select United flight, departing Sat, May 30 from Idaho Falls Regional to Denver Intl., returning Sun, May 31, priced at $279 found 4 days ago
Thu, Jun 4 - Sun, Jun 7
IDA
Idaho Falls Regional
DEN
Denver Intl.
$286 Roundtrip, found 15 hours ago
$286
Roundtrip
found 15 hours ago
Select United flight, departing Thu, Jun 4 from Idaho Falls Regional to Denver Intl., returning Sun, Jun 7, priced at $286 found 15 hours ago
Tue, Oct 13 - Sun, Oct 18
IDA
Idaho Falls Regional
DEN
Denver Intl.
$290 Roundtrip, found 1 day ago
$290
Roundtrip
found 1 day ago
Select United flight, departing Tue, Oct 13 from Idaho Falls Regional to Denver Intl., returning Sun, Oct 18, priced at $290 found 1 day ago
Thu, Jun 4 - Sun, Jun 7
IDA
Idaho Falls Regional
DEN
Denver Intl.
$301 Roundtrip, found 15 hours ago
$301
Roundtrip
found 15 hours ago
Select United flight, departing Thu, Jun 4 from Idaho Falls Regional to Denver Intl., returning Sun, Jun 7, priced at $301 found 15 hours ago
Sat, May 30 - Sat, Jun 6
IDA
Idaho Falls Regional
DEN
Denver Intl.
$305 Roundtrip, found 4 days ago
$305
Roundtrip
found 4 days ago
Select United flight, departing Sat, May 30 from Idaho Falls Regional to Denver Intl., returning Sat, Jun 6, priced at $305 found 4 days ago
Thu, Jun 4 - Sat, Jun 6
IDA
Idaho Falls Regional
DEN
Denver Intl.
$307 Roundtrip, found 1 day ago
$307
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 4 from Idaho Falls Regional to Denver Intl., returning Sat, Jun 6, priced at $307 found 1 day ago
Tue, Oct 13 - Sun, Oct 18
IDA
Idaho Falls Regional
DEN
Denver Intl.
$308 Roundtrip, found 1 day ago
$308
Roundtrip
found 1 day ago
Select United flight, departing Tue, Oct 13 from Idaho Falls Regional to Denver Intl., returning Sun, Oct 18, priced at $308 found 1 day ago
Thu, Jun 4 - Sun, Jun 7
IDA
Idaho Falls Regional
DEN
Denver Intl.
$312 Roundtrip, found 15 hours ago
$312
Roundtrip
found 15 hours ago
Select United flight, departing Thu, Jun 4 from Idaho Falls Regional to Denver Intl., returning Sun, Jun 7, priced at $312 found 15 hours ago
Fri, Jul 17 - Sun, Jul 19
IDA
Idaho Falls Regional
DEN
Denver Intl.
$314 Roundtrip, found 1 day ago
$314
Roundtrip
found 1 day ago
Select United flight, departing Fri, Jul 17 from Idaho Falls Regional to Denver Intl., returning Sun, Jul 19, priced at $314 found 1 day ago