Delta Flight 3901 Deals & Information (2025/2026)

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Delta Flight 3901 Route Deals From $214

The cheapest prices found with in the last 7 days for return flights were $319 and $214 for one-way flights to Salt Lake City Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Oct 18 - Sun, Oct 26
HLN
Helena Regional
SLC
Salt Lake City Intl.
$319 Roundtrip, found 18 hours ago
$319
Roundtrip
found 18 hours ago
Select Delta flight, departing Sat, Oct 18 from Helena Regional to Salt Lake City Intl., returning Sun, Oct 26, priced at $319 found 18 hours ago
Mon, Jul 21 - Sat, Aug 9
HLN
Helena Regional
SLC
Salt Lake City Intl.
$327 Roundtrip, found 6 days ago
$327
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Jul 21 from Helena Regional to Salt Lake City Intl., returning Sat, Aug 9, priced at $327 found 6 days ago
Sun, Aug 3 - Tue, Aug 12
HLN
Helena Regional
SLC
Salt Lake City Intl.
$358 Roundtrip, found 6 days ago
$358
Roundtrip
found 6 days ago
Select Delta flight, departing Sun, Aug 3 from Helena Regional to Salt Lake City Intl., returning Tue, Aug 12, priced at $358 found 6 days ago
Mon, Jun 30 - Sat, Jul 19
HLN
Helena Regional
SLC
Salt Lake City Intl.
$368 Roundtrip, found 6 days ago
$368
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Jun 30 from Helena Regional to Salt Lake City Intl., returning Sat, Jul 19, priced at $368 found 6 days ago
Sat, Oct 18 - Sun, Oct 26
HLN
Helena Regional
SLC
Salt Lake City Intl.
$379 Roundtrip, found 18 hours ago
$379
Roundtrip
found 18 hours ago
Select Delta flight, departing Sat, Oct 18 from Helena Regional to Salt Lake City Intl., returning Sun, Oct 26, priced at $379 found 18 hours ago
Sun, Jul 20 - Sat, Aug 2
HLN
Helena Regional
SLC
Salt Lake City Intl.
$434 Roundtrip, found 6 days ago
$434
Roundtrip
found 6 days ago
Select Delta flight, departing Sun, Jul 20 from Helena Regional to Salt Lake City Intl., returning Sat, Aug 2, priced at $434 found 6 days ago
Sat, Oct 18 - Sun, Oct 26
HLN
Helena Regional
SLC
Salt Lake City Intl.
$439 Roundtrip, found 18 hours ago
$439
Roundtrip
found 18 hours ago
Select Delta flight, departing Sat, Oct 18 from Helena Regional to Salt Lake City Intl., returning Sun, Oct 26, priced at $439 found 18 hours ago
Mon, Jun 23 - Sat, Jul 12
HLN
Helena Regional
SLC
Salt Lake City Intl.
$445 Roundtrip, found 6 days ago
$445
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Jun 23 from Helena Regional to Salt Lake City Intl., returning Sat, Jul 12, priced at $445 found 6 days ago
Thu, Jun 26 - Sat, Jul 12
HLN
Helena Regional
SLC
Salt Lake City Intl.
$450 Roundtrip, found 6 days ago
$450
Roundtrip
found 6 days ago
Select Delta flight, departing Thu, Jun 26 from Helena Regional to Salt Lake City Intl., returning Sat, Jul 12, priced at $450 found 6 days ago
Sat, Oct 18 - Sun, Oct 26
HLN
Helena Regional
SLC
Salt Lake City Intl.
$460 Roundtrip, found 18 hours ago
$460
Roundtrip
found 18 hours ago
Select Delta flight, departing Sat, Oct 18 from Helena Regional to Salt Lake City Intl., returning Sun, Oct 26, priced at $460 found 18 hours ago
Tue, Jun 24 - Sun, Jul 13
HLN
Helena Regional
SLC
Salt Lake City Intl.
$469 Roundtrip, found 6 days ago
$469
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Jun 24 from Helena Regional to Salt Lake City Intl., returning Sun, Jul 13, priced at $469 found 6 days ago

Frequently asked questions

What route does flight number DL3901 take?
DL3901 travels between SMF and LAX and is a direct flight. This journey usually takes 1 hour and 28 minutes.
What terminal does DL3901 fly out of?
Direct flights to and from Sacramento, CA Airport (SMF-Sacramento Intl.) and Los Angeles Intl. Airport (LAX) are served by DL3901, and passengers who travel on this flight typically board from Terminal A.
What kind of plane is on flight number DL3901?
Get set to board an Embraer 175 if you’re booked on flight DL3901. Almost all flights from Sacramento, CA Airport (SMF-Sacramento Intl.) to Los Angeles Intl. Airport (LAX) use this model of aircraft.
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 DL3901 flight with Travelocity, please visit our Customer Service Portal.