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.

Sat, May 23 - Wed, May 27
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$283 Roundtrip, found 2 hours ago
$283
Roundtrip
found 2 hours ago
Select Delta flight, departing Sat, May 23 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Wed, May 27, priced at $283 found 2 hours ago
Sat, May 23 - Sat, May 30
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$293 Roundtrip, found 2 hours ago
$293
Roundtrip
found 2 hours ago
Select Delta flight, departing Sat, May 23 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Sat, May 30, priced at $293 found 2 hours ago
Tue, Jun 9 - Wed, Jun 24
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$294 Roundtrip, found 2 days ago
$294
Roundtrip
found 2 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 2 days ago
Fri, May 29 - Mon, Jun 1
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$301 Roundtrip, found 6 days ago
$301
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, May 29 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Mon, Jun 1, priced at $301 found 6 days ago
Tue, Jun 30 - Wed, Jul 15
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$319 Roundtrip, found 2 days ago
$319
Roundtrip
found 2 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 2 days ago
Tue, Jul 21 - Thu, Aug 6
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$320 Roundtrip, found 2 days ago
$320
Roundtrip
found 2 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 2 days ago
Mon, Jun 29 - Wed, Jul 15
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$324 Roundtrip, found 2 days ago
$324
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Jun 29 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Wed, Jul 15, priced at $324 found 2 days ago
Sat, Jun 13 - Thu, Jun 18
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$324 Roundtrip, found 6 days ago
$324
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Jun 13 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Thu, Jun 18, priced at $324 found 6 days ago
Tue, Jun 9 - Thu, Jun 25
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$325 Roundtrip, found 2 days ago
$325
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jun 9 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Thu, Jun 25, priced at $325 found 2 days ago
Sun, May 24 - Tue, Jun 2
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$328 Roundtrip, found 2 hours ago
$328
Roundtrip
found 2 hours ago
Select Delta flight, departing Sun, May 24 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Tue, Jun 2, priced at $328 found 2 hours ago
Thu, Jul 2 - Thu, Jul 16
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$334 Roundtrip, found 2 days ago
$334
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Jul 2 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Thu, Jul 16, priced at $334 found 2 days ago
Sat, Jul 4 - Wed, Jul 8
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$334 Roundtrip, found 3 days ago
$334
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Jul 4 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Wed, Jul 8, priced at $334 found 3 days ago
Wed, Jun 10 - Wed, Jun 24
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$335 Roundtrip, found 2 days ago
$335
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Jun 10 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Wed, Jun 24, priced at $335 found 2 days ago
Mon, May 25 - Tue, Jun 2
DTW
Detroit Metropolitan Wayne County
PWM
Portland Intl. Jetport
$336 Roundtrip, found 2 hours ago
$336
Roundtrip
found 2 hours ago
Select Delta flight, departing Mon, May 25 from Detroit Metropolitan Wayne County to Portland Intl. Jetport, returning Tue, Jun 2, priced at $336 found 2 hours 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.