United Flight 2138 Deals & Information (2025/2026)

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United Flight 2138 Route Deals From $125

The cheapest prices found with in the last 7 days for return flights were $254 and $125 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 24 - Sun, Oct 26
BZN
Bozeman Yellowstone Intl.
ORD
O'Hare Intl.
$254 Roundtrip, found 9 hours ago
$254
Roundtrip
found 9 hours ago
Select United flight, departing Fri, Oct 24 from Bozeman Yellowstone Intl. to O'Hare Intl., returning Sun, Oct 26, priced at $254 found 9 hours ago
Thu, Oct 2 - Sun, Oct 5
BZN
Bozeman Yellowstone Intl.
ORD
O'Hare Intl.
$254 Roundtrip, found 20 hours ago
$254
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Oct 2 from Bozeman Yellowstone Intl. to O'Hare Intl., returning Sun, Oct 5, priced at $254 found 20 hours ago
Fri, Oct 24 - Sun, Oct 26
BZN
Bozeman Yellowstone Intl.
ORD
O'Hare Intl.
$280 Roundtrip, found 9 hours ago
$280
Roundtrip
found 9 hours ago
Select United flight, departing Fri, Oct 24 from Bozeman Yellowstone Intl. to O'Hare Intl., returning Sun, Oct 26, priced at $280 found 9 hours ago
Thu, Apr 9 - Sun, Apr 12
BZN
Bozeman Yellowstone Intl.
ORD
O'Hare Intl.
$283 Roundtrip, found 4 days ago
$283
Roundtrip
found 4 days ago
Select United flight, departing Thu, Apr 9 from Bozeman Yellowstone Intl. to O'Hare Intl., returning Sun, Apr 12, priced at $283 found 4 days ago
Thu, Nov 6 - Mon, Nov 10
BZN
Bozeman Yellowstone Intl.
ORD
O'Hare Intl.
$290 Roundtrip, just found
$290
Roundtrip
just found
Select United flight, departing Thu, Nov 6 from Bozeman Yellowstone Intl. to O'Hare Intl., returning Mon, Nov 10, priced at $290 just found
Thu, Nov 6 - Mon, Nov 10
BZN
Bozeman Yellowstone Intl.
ORD
O'Hare Intl.
$302 Roundtrip, just found
$302
Roundtrip
just found
Select United flight, departing Thu, Nov 6 from Bozeman Yellowstone Intl. to O'Hare Intl., returning Mon, Nov 10, priced at $302 just found
Fri, Oct 17 - Mon, Oct 20
BZN
Bozeman Yellowstone Intl.
ORD
O'Hare Intl.
$302 Roundtrip, found 2 days ago
$302
Roundtrip
found 2 days ago
Select United flight, departing Fri, Oct 17 from Bozeman Yellowstone Intl. to O'Hare Intl., returning Mon, Oct 20, priced at $302 found 2 days ago
Thu, Sep 25 - Sun, Sep 28
BZN
Bozeman Yellowstone Intl.
ORD
O'Hare Intl.
$304 Roundtrip, found 1 hour ago
$304
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Sep 25 from Bozeman Yellowstone Intl. to O'Hare Intl., returning Sun, Sep 28, priced at $304 found 1 hour ago