Delta Flight 3673 Deals & Information (2026/2027)

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Delta Flight 3673 Route Deals From $222

The cheapest prices found with in the last 7 days for return flights were $283 and $222 for one-way flights to Portland Intl. Jetport for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, May 8 - Tue, May 12
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$283 Roundtrip, just found
$283
Roundtrip
just found
Select Delta flight, departing Fri, May 8 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Tue, May 12, priced at $283 just found
Sat, Jul 4 - Wed, Jul 8
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$284 Roundtrip, found 1 day ago
$284
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Jul 4 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Wed, Jul 8, priced at $284 found 1 day ago
Fri, May 8 - Wed, May 13
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$293 Roundtrip, just found
$293
Roundtrip
just found
Select Delta flight, departing Fri, May 8 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Wed, May 13, priced at $293 just found
Tue, Jun 9 - Wed, Jun 24
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$294 Roundtrip, found 5 days ago
$294
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Jun 9 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Wed, Jun 24, priced at $294 found 5 days ago
Fri, May 8 - Mon, May 11
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$301 Roundtrip, just found
$301
Roundtrip
just found
Select Delta flight, departing Fri, May 8 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Mon, May 11, priced at $301 just found
Fri, May 8 - Tue, May 26
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$309 Roundtrip, found 1 day ago
$309
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, May 8 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Tue, May 26, priced at $309 found 1 day ago
Mon, Jun 29 - Wed, Jul 8
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$314 Roundtrip, found 1 day ago
$314
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Jun 29 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Wed, Jul 8, priced at $314 found 1 day ago
Tue, Jun 30 - Wed, Jul 15
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$319 Roundtrip, found 5 days ago
$319
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Jun 30 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Wed, Jul 15, priced at $319 found 5 days ago
Sat, Jun 6 - Wed, Jun 24
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$319 Roundtrip, found 1 day ago
$319
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Jun 6 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Wed, Jun 24, priced at $319 found 1 day ago
Tue, Jul 21 - Thu, Aug 6
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$320 Roundtrip, found 5 days ago
$320
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Jul 21 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Thu, Aug 6, priced at $320 found 5 days ago
Sat, Jun 13 - Tue, Jun 16
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$322 Roundtrip, found 1 day ago
$322
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Jun 13 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Tue, Jun 16, priced at $322 found 1 day ago
Mon, Jun 29 - Tue, Jul 7
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$324 Roundtrip, found 1 day ago
$324
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Jun 29 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Tue, Jul 7, priced at $324 found 1 day ago
Mon, Jun 15 - Sat, Jun 27
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$326 Roundtrip, found 1 day ago
$326
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Jun 15 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Sat, Jun 27, priced at $326 found 1 day ago
Mon, May 4 - Tue, May 12
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$328 Roundtrip, just found
$328
Roundtrip
just found
Select Delta flight, departing Mon, May 4 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Tue, May 12, priced at $328 just found
Thu, Jul 2 - Sat, Jul 4
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$333 Roundtrip, found 1 day ago
$333
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jul 2 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Sat, Jul 4, priced at $333 found 1 day ago

Frequently asked questions

What route does flight number DL3673 take?
DL3673 takes a few routes. The most popular is between Ontario Airport and Sea-Tac Airport, which is a direct flight. This flight takes around 2 hours and 46 minutes. However, there may be other flights with this number that have one or more stops.
How often is DL3673 on time?
Delta flight number DL3673 from ONT to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) arrives on schedule 98% of the time, so you can relax knowing you will get to your destination ASAP. When it is running behind schedule, the average delay time is 9 minutes. This flight has a 4.85-star rating.
What terminal does DL3673 fly out of?
You'll most likely board from Terminal 2 if you're flying out of Ontario Airport. DL3673 serves a variety of routes, but the direct flight between ONT and Sea-Tac Airport is the most frequently traveled one.
What kind of plane is on flight number DL3673?
If you're taking flight DL3673 from Los Angeles - Ontario Intl. Airport (ONT) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.), there's a strong chance you'll be aboard the Embraer 175. Flight DL3673 serves several routes, but this is the most common one.
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 DL3673 flight with Travelocity, please visit our Customer Service Portal.