Delta Flight 3520 Deals & Information (2025/2026)

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Delta Flight 3520 Route Deals From $202

The cheapest prices found with in the last 7 days for return flights were $259 and $202 for one-way flights to Colorado Springs for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Sep 20 - Thu, Sep 25
SLC
Salt Lake City Intl.
COS
Colorado Springs
$259 Roundtrip, found 1 day ago
$259
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Sep 20 from Salt Lake City Intl. to Colorado Springs, returning Thu, Sep 25, priced at $259 found 1 day ago
Mon, Sep 22 - Sat, Sep 27
SLC
Salt Lake City Intl.
COS
Colorado Springs
$265 Roundtrip, found 1 day ago
$265
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Sep 22 from Salt Lake City Intl. to Colorado Springs, returning Sat, Sep 27, priced at $265 found 1 day ago
Sun, Sep 7 - Fri, Sep 19
SLC
Salt Lake City Intl.
COS
Colorado Springs
$279 Roundtrip, found 3 days ago
$279
Roundtrip
found 3 days ago
Select Delta flight, departing Sun, Sep 7 from Salt Lake City Intl. to Colorado Springs, returning Fri, Sep 19, priced at $279 found 3 days ago
Sat, Sep 6 - Fri, Sep 19
SLC
Salt Lake City Intl.
COS
Colorado Springs
$285 Roundtrip, found 3 days ago
$285
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Sep 6 from Salt Lake City Intl. to Colorado Springs, returning Fri, Sep 19, priced at $285 found 3 days ago
Thu, Oct 30 - Mon, Nov 3
SLC
Salt Lake City Intl.
COS
Colorado Springs
$299 Roundtrip, found 3 days ago
$299
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Oct 30 from Salt Lake City Intl. to Colorado Springs, returning Mon, Nov 3, priced at $299 found 3 days ago
Thu, Oct 9 - Sun, Oct 12
SLC
Salt Lake City Intl.
COS
Colorado Springs
$315 Roundtrip, found 5 days ago
$315
Roundtrip
found 5 days ago
Select Delta flight, departing Thu, Oct 9 from Salt Lake City Intl. to Colorado Springs, returning Sun, Oct 12, priced at $315 found 5 days ago
Fri, Jan 9 - Sun, Jan 11
SLC
Salt Lake City Intl.
COS
Colorado Springs
$319 Roundtrip, found 4 days ago
$319
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, Jan 9 from Salt Lake City Intl. to Colorado Springs, returning Sun, Jan 11, priced at $319 found 4 days ago

Frequently asked questions

What route does flight number DL3520 take?
DL3520 is used on multiple routes. Mostly, DL3520 flies straight from Spokane, WA Airport (GEG-Spokane Intl.) to Sea-Tac Airport. If you've booked a seat on this route, you'll be airborne for 1 hour and 14 minutes.
How often is DL3520 on time?
If you're traveling with Delta on flight number DL3520 between Spokane Intl. Airport and Sea-Tac Airport, your service is on time 93% of the time — when you're running on a tight schedule, it's good to know that your flight does too. On the odd occasion that there is an unanticipated delay, the average wait time is only 1 hour and 10 minutes. This trip has a 2.6-star rating.
What kind of plane is on flight number DL3520?
If you're considering booking flight DL3520 from Spokane, WA Airport (GEG-Spokane Intl.) to Seattle - Tacoma Intl. Airport (SEA), you'll most likely be on board an Embraer 175. This flight number serves many routes, but this is the busiest.
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 DL3520 flight with Travelocity, please visit our Customer Service Portal.