Delta Flight UA3680 Deals & Information (2025/2026)

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Delta Flight 3680 Route Deals From $137

The cheapest prices found with in the last 7 days for return flights were $180 and $137 for one-way flights to Minneapolis - St. Paul Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jul 1 - Fri, Jul 4
IAD
Washington Dulles Intl.
MSP
Minneapolis - St. Paul Intl.
$180 Roundtrip, found 1 day ago
$180
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Jul 1 from Washington Dulles Intl. to Minneapolis - St. Paul Intl., returning Fri, Jul 4, priced at $180 found 1 day ago
Sun, May 25 - Wed, May 28
IAD
Washington Dulles Intl.
MSP
Minneapolis - St. Paul Intl.
$183 Roundtrip, found 1 day ago
$183
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, May 25 from Washington Dulles Intl. to Minneapolis - St. Paul Intl., returning Wed, May 28, priced at $183 found 1 day ago
Tue, Jul 1 - Fri, Jul 11
IAD
Washington Dulles Intl.
MSP
Minneapolis - St. Paul Intl.
$204 Roundtrip, found 1 hour ago
$204
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Jul 1 from Washington Dulles Intl. to Minneapolis - St. Paul Intl., returning Fri, Jul 11, priced at $204 found 1 hour ago
Tue, May 20 - Wed, May 28
IAD
Washington Dulles Intl.
MSP
Minneapolis - St. Paul Intl.
$208 Roundtrip, found 2 hours ago
$208
Roundtrip
found 2 hours ago
Select Delta flight, departing Tue, May 20 from Washington Dulles Intl. to Minneapolis - St. Paul Intl., returning Wed, May 28, priced at $208 found 2 hours ago
Sun, May 25 - Tue, May 27
IAD
Washington Dulles Intl.
MSP
Minneapolis - St. Paul Intl.
$209 Roundtrip, found 1 day ago
$209
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, May 25 from Washington Dulles Intl. to Minneapolis - St. Paul Intl., returning Tue, May 27, priced at $209 found 1 day ago

Frequently asked questions

What route does flight number DL3680 take?
DL3680 serves multiple routes, but the most common is between Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) and SEA. If your flight goes direct, you’ll stroll through arrivals in around 2 hours and 38 minutes. Multi-stop flights can also use this number, as can flights on other routes.
What terminal does DL3680 fly out of?
Terminal 2 is the terminal you’ll likely board from if you’re booked on a flight from Los Angeles - Ontario Intl. Airport (ONT). ONT to SEA is the most frequently traveled route for flight number DL3680.
What kind of plane is on flight number DL3680?
If you’ve booked a ticket on flight DL3680 from Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.), there’s every chance you’ll be on board an Embraer 175. Flight DL3680 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 DL3680 flight with Travelocity, please visit our Customer Service Portal.