Delta Flight DL3503 Deals & Information (2025/2026)

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Delta Flight 3503 Route Deals From $160

The cheapest prices found with in the last 7 days for return flights were $199 and $160 for one-way flights to Salt Lake City Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Apr 23 - Sun, Apr 26
BOI
Boise
SLC
Salt Lake City Intl.
$199 Roundtrip, found 1 day ago
$199
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Apr 23 from Boise to Salt Lake City Intl., returning Sun, Apr 26, priced at $199 found 1 day ago
Tue, Oct 14 - Wed, Oct 22
BOI
Boise
SLC
Salt Lake City Intl.
$203 Roundtrip, found 1 day ago
$203
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Oct 14 from Boise to Salt Lake City Intl., returning Wed, Oct 22, priced at $203 found 1 day ago
Tue, Nov 4 - Sat, Nov 22
BOI
Boise
SLC
Salt Lake City Intl.
$219 Roundtrip, found 3 days ago
$219
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Nov 4 from Boise to Salt Lake City Intl., returning Sat, Nov 22, priced at $219 found 3 days ago
Mon, Sep 29 - Sat, Oct 4
BOI
Boise
SLC
Salt Lake City Intl.
$249 Roundtrip, found 3 days ago
$249
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Sep 29 from Boise to Salt Lake City Intl., returning Sat, Oct 4, priced at $249 found 3 days ago
Thu, Oct 9 - Mon, Oct 13
BOI
Boise
SLC
Salt Lake City Intl.
$254 Roundtrip, found 3 days ago
$254
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Oct 9 from Boise to Salt Lake City Intl., returning Mon, Oct 13, priced at $254 found 3 days ago
Tue, Oct 14 - Wed, Oct 22
BOI
Boise
SLC
Salt Lake City Intl.
$255 Roundtrip, found 1 day ago
$255
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Oct 14 from Boise to Salt Lake City Intl., returning Wed, Oct 22, priced at $255 found 1 day ago
Sat, Sep 27 - Mon, Sep 29
BOI
Boise
SLC
Salt Lake City Intl.
$264 Roundtrip, found 15 hours ago
$264
Roundtrip
found 15 hours ago
Select Delta flight, departing Sat, Sep 27 from Boise to Salt Lake City Intl., returning Mon, Sep 29, priced at $264 found 15 hours ago

Frequently asked questions

What route does flight number DL3503 take?
DL3503 operates non-stop from Boise Airport (BOI) to Sea-Tac Airport. During this trip, you'll be in the air for around 1 hour and 44 minutes. It's wise to book ahead to get your favorite seat.
What kind of plane is on flight number DL3503?
Get set to cruise aboard an Embraer 175 if you're booked on flight DL3503. Most services from Boise, ID Airport (BOI) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) operate using this kind of plane.
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 DL3503 flight with Travelocity, please visit our Customer Service Portal.