Delta Flight 1520 Deals & Information (2026/2027)

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Delta Flight 1520 Route Deals From $116

The cheapest prices found with in the last 7 days for return flights were $184 and $116 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, May 22 - Sun, May 24
PDX
Portland Intl.
SEA
Seattle - Tacoma Intl.
$184 Roundtrip, found 2 days ago
$184
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, May 22 from Portland Intl. to Seattle - Tacoma Intl., returning Sun, May 24, priced at $184 found 2 days ago
Mon, Jun 8 - Mon, Jun 22
PDX
Portland Intl.
SEA
Seattle - Tacoma Intl.
$226 Roundtrip, found 1 day ago
$226
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Jun 8 from Portland Intl. to Seattle - Tacoma Intl., returning Mon, Jun 22, priced at $226 found 1 day ago
Tue, Apr 28 - Wed, Apr 29
PDX
Portland Intl.
SEA
Seattle - Tacoma Intl.
$238 Roundtrip, found 3 days ago
$238
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Apr 28 from Portland Intl. to Seattle - Tacoma Intl., returning Wed, Apr 29, priced at $238 found 3 days ago
Mon, Jun 8 - Mon, Jun 22
PDX
Portland Intl.
SEA
Seattle - Tacoma Intl.
$246 Roundtrip, found 1 day ago
$246
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Jun 8 from Portland Intl. to Seattle - Tacoma Intl., returning Mon, Jun 22, priced at $246 found 1 day ago
Fri, May 22 - Sun, May 24
PDX
Portland Intl.
SEA
Seattle - Tacoma Intl.
$249 Roundtrip, found 2 days ago
$249
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, May 22 from Portland Intl. to Seattle - Tacoma Intl., returning Sun, May 24, priced at $249 found 2 days ago

Frequently asked questions

What route does flight number DL1520 take?
DL1520 serves multiple routes, but the most common is between Houston, TX Airport (IAH-George Bush Intercontinental) and Salt Lake City Intl. Airport. If your flight goes direct, you'll arrive in approximately 3 hours and 5 minutes. Multi-stop flights can also travel under the same number, as can services on other routes.
What terminal does DL1520 fly out of?
DL1520 flights out of Houston Airport normally leave from Terminal A. This flight number runs on multiple routes, but the most frequented one is Houston Airport to SLC.
What kind of plane is on flight number DL1520?
If you're considering booking flight DL1520 from George Bush Intercontinental Airport (IAH) to Salt Lake City Intl. Airport, you're likely to be heading off on the Airbus A220-100. This flight number serves several 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 DL1520 flight with Travelocity, please visit our Customer Service Portal.