United Flight AA3690 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

United Flight 3690 Route Deals From $91

The cheapest prices found with in the last 7 days for return flights were $181 and $91 for one-way flights to Indianapolis Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 3 - Sun, Oct 5
ORD
O'Hare Intl.
IND
Indianapolis Intl.
$181 Roundtrip, found 6 days ago
$181
Roundtrip
found 6 days ago
Select United flight, departing Fri, Oct 3 from O'Hare Intl. to Indianapolis Intl., returning Sun, Oct 5, priced at $181 found 6 days ago
Thu, Sep 18 - Fri, Sep 19
ORD
O'Hare Intl.
IND
Indianapolis Intl.
$194 Roundtrip, found 1 day ago
$194
Roundtrip
found 1 day ago
Select United flight, departing Thu, Sep 18 from O'Hare Intl. to Indianapolis Intl., returning Fri, Sep 19, priced at $194 found 1 day ago
Fri, Oct 3 - Sun, Oct 5
ORD
O'Hare Intl.
IND
Indianapolis Intl.
$203 Roundtrip, found 6 days ago
$203
Roundtrip
found 6 days ago
Select United flight, departing Fri, Oct 3 from O'Hare Intl. to Indianapolis Intl., returning Sun, Oct 5, priced at $203 found 6 days ago
Thu, Sep 18 - Fri, Sep 19
ORD
O'Hare Intl.
IND
Indianapolis Intl.
$204 Roundtrip, found 1 day ago
$204
Roundtrip
found 1 day ago
Select United flight, departing Thu, Sep 18 from O'Hare Intl. to Indianapolis Intl., returning Fri, Sep 19, priced at $204 found 1 day ago
Fri, Sep 19 - Sun, Sep 21
ORD
O'Hare Intl.
IND
Indianapolis Intl.
$207 Roundtrip, found 3 days ago
$207
Roundtrip
found 3 days ago
Select United flight, departing Fri, Sep 19 from O'Hare Intl. to Indianapolis Intl., returning Sun, Sep 21, priced at $207 found 3 days ago
Fri, Sep 19 - Sun, Sep 21
ORD
O'Hare Intl.
IND
Indianapolis Intl.
$211 Roundtrip, found 3 days ago
$211
Roundtrip
found 3 days ago
Select United flight, departing Fri, Sep 19 from O'Hare Intl. to Indianapolis Intl., returning Sun, Sep 21, priced at $211 found 3 days ago
Fri, Oct 3 - Sun, Oct 5
ORD
O'Hare Intl.
IND
Indianapolis Intl.
$211 Roundtrip, found 6 days ago
$211
Roundtrip
found 6 days ago
Select United flight, departing Fri, Oct 3 from O'Hare Intl. to Indianapolis Intl., returning Sun, Oct 5, priced at $211 found 6 days ago
Fri, Oct 3 - Sun, Oct 5
ORD
O'Hare Intl.
IND
Indianapolis Intl.
$215 Roundtrip, found 6 days ago
$215
Roundtrip
found 6 days ago
Select United flight, departing Fri, Oct 3 from O'Hare Intl. to Indianapolis Intl., returning Sun, Oct 5, priced at $215 found 6 days ago
Fri, Oct 3 - Sun, Oct 5
ORD
O'Hare Intl.
IND
Indianapolis Intl.
$223 Roundtrip, found 6 days ago
$223
Roundtrip
found 6 days ago
Select United flight, departing Fri, Oct 3 from O'Hare Intl. to Indianapolis Intl., returning Sun, Oct 5, priced at $223 found 6 days ago
Thu, Sep 18 - Fri, Sep 19
ORD
O'Hare Intl.
IND
Indianapolis Intl.
$228 Roundtrip, found 1 day ago
$228
Roundtrip
found 1 day ago
Select United flight, departing Thu, Sep 18 from O'Hare Intl. to Indianapolis Intl., returning Fri, Sep 19, priced at $228 found 1 day ago
Fri, Sep 19 - Sun, Sep 21
ORD
O'Hare Intl.
IND
Indianapolis Intl.
$230 Roundtrip, found 3 days ago
$230
Roundtrip
found 3 days ago
Select United flight, departing Fri, Sep 19 from O'Hare Intl. to Indianapolis Intl., returning Sun, Sep 21, priced at $230 found 3 days ago