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 1 day ago
$319
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Oct 18 from Helena Regional to Salt Lake City Intl., returning Sun, Oct 26, priced at $319 found 1 day ago
Sat, Oct 18 - Sun, Oct 26
HLN
Helena Regional
SLC
Salt Lake City Intl.
$379 Roundtrip, found 1 day ago
$379
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Oct 18 from Helena Regional to Salt Lake City Intl., returning Sun, Oct 26, priced at $379 found 1 day ago
Sat, Oct 18 - Sun, Oct 26
HLN
Helena Regional
SLC
Salt Lake City Intl.
$439 Roundtrip, found 1 day ago
$439
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Oct 18 from Helena Regional to Salt Lake City Intl., returning Sun, Oct 26, priced at $439 found 1 day ago
Sat, Oct 18 - Sun, Oct 26
HLN
Helena Regional
SLC
Salt Lake City Intl.
$460 Roundtrip, found 1 day ago
$460
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Oct 18 from Helena Regional to Salt Lake City Intl., returning Sun, Oct 26, priced at $460 found 1 day ago
Thu, Jun 19 - Thu, Jun 26
HLN
Helena Regional
SLC
Salt Lake City Intl.
$561 Roundtrip, found 3 days ago
$561
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Jun 19 from Helena Regional to Salt Lake City Intl., returning Thu, Jun 26, priced at $561 found 3 days ago
Wed, Jun 18 - Thu, Jun 26
HLN
Helena Regional
SLC
Salt Lake City Intl.
$604 Roundtrip, found 3 days ago
$604
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Jun 18 from Helena Regional to Salt Lake City Intl., returning Thu, Jun 26, priced at $604 found 3 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.