United Flight 2155 Deals & Information (2026/2027)

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United Flight 2155 Route Deals From $273

The cheapest prices found with in the last 7 days for return flights were $249 and $273 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Sep 30 - Sun, Oct 4
IDA
Idaho Falls Regional
DEN
Denver Intl.
$249 Roundtrip, found 17 hours ago
$249
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Sep 30 from Idaho Falls Regional to Denver Intl., returning Sun, Oct 4, priced at $249 found 17 hours ago
Tue, May 26 - Sat, May 30
IDA
Idaho Falls Regional
DEN
Denver Intl.
$255 Roundtrip, found 4 days ago
$255
Roundtrip
found 4 days ago
Select United flight, departing Tue, May 26 from Idaho Falls Regional to Denver Intl., returning Sat, May 30, priced at $255 found 4 days ago
Wed, Sep 30 - Sun, Oct 4
IDA
Idaho Falls Regional
DEN
Denver Intl.
$263 Roundtrip, found 17 hours ago
$263
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Sep 30 from Idaho Falls Regional to Denver Intl., returning Sun, Oct 4, priced at $263 found 17 hours ago
Thu, Oct 15 - Sun, Oct 18
IDA
Idaho Falls Regional
DEN
Denver Intl.
$271 Roundtrip, found 17 hours ago
$271
Roundtrip
found 17 hours ago
Select United flight, departing Thu, Oct 15 from Idaho Falls Regional to Denver Intl., returning Sun, Oct 18, priced at $271 found 17 hours ago
Thu, Oct 15 - Sun, Oct 18
IDA
Idaho Falls Regional
DEN
Denver Intl.
$277 Roundtrip, found 17 hours ago
$277
Roundtrip
found 17 hours ago
Select United flight, departing Thu, Oct 15 from Idaho Falls Regional to Denver Intl., returning Sun, Oct 18, priced at $277 found 17 hours ago
Wed, Oct 14 - Sun, Oct 18
IDA
Idaho Falls Regional
DEN
Denver Intl.
$278 Roundtrip, found 17 hours ago
$278
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Oct 14 from Idaho Falls Regional to Denver Intl., returning Sun, Oct 18, priced at $278 found 17 hours ago
Wed, Oct 14 - Sun, Oct 18
IDA
Idaho Falls Regional
DEN
Denver Intl.
$279 Roundtrip, found 17 hours ago
$279
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Oct 14 from Idaho Falls Regional to Denver Intl., returning Sun, Oct 18, priced at $279 found 17 hours ago
Thu, Oct 15 - Sun, Oct 18
IDA
Idaho Falls Regional
DEN
Denver Intl.
$285 Roundtrip, found 17 hours ago
$285
Roundtrip
found 17 hours ago
Select United flight, departing Thu, Oct 15 from Idaho Falls Regional to Denver Intl., returning Sun, Oct 18, priced at $285 found 17 hours ago
Wed, Oct 14 - Sun, Oct 18
IDA
Idaho Falls Regional
DEN
Denver Intl.
$286 Roundtrip, found 17 hours ago
$286
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Oct 14 from Idaho Falls Regional to Denver Intl., returning Sun, Oct 18, priced at $286 found 17 hours ago
Wed, Oct 14 - Sun, Oct 18
IDA
Idaho Falls Regional
DEN
Denver Intl.
$287 Roundtrip, found 17 hours ago
$287
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Oct 14 from Idaho Falls Regional to Denver Intl., returning Sun, Oct 18, priced at $287 found 17 hours ago
Thu, Oct 15 - Sun, Oct 18
IDA
Idaho Falls Regional
DEN
Denver Intl.
$290 Roundtrip, found 17 hours ago
$290
Roundtrip
found 17 hours ago
Select United flight, departing Thu, Oct 15 from Idaho Falls Regional to Denver Intl., returning Sun, Oct 18, priced at $290 found 17 hours ago
Wed, Oct 14 - Sun, Oct 18
IDA
Idaho Falls Regional
DEN
Denver Intl.
$292 Roundtrip, found 17 hours ago
$292
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Oct 14 from Idaho Falls Regional to Denver Intl., returning Sun, Oct 18, priced at $292 found 17 hours ago
Wed, Oct 14 - Sun, Oct 18
IDA
Idaho Falls Regional
DEN
Denver Intl.
$293 Roundtrip, found 17 hours ago
$293
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Oct 14 from Idaho Falls Regional to Denver Intl., returning Sun, Oct 18, priced at $293 found 17 hours ago
Tue, May 26 - Sat, May 30
IDA
Idaho Falls Regional
DEN
Denver Intl.
$295 Roundtrip, found 4 days ago
$295
Roundtrip
found 4 days ago
Select United flight, departing Tue, May 26 from Idaho Falls Regional to Denver Intl., returning Sat, May 30, priced at $295 found 4 days ago