DL3997 Delta Air Lines - Flight Status
Below, you can find details about Delta Air Lines flight DL3997, which currently operates between the airports of Seattle - Seattle-Tacoma International Airport (Airport Code SEA) and Portland - Portland International Airport (Airport Code PDX).
This flight data pertains specifically to the flight's details for Tuesday, April 14, 2026.
Table of contents:
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights DL3997
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights DL3997
DL3997 On Time performance:
n/a
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions. Flight Status
DL3997 Delta Air Lines to Portland
Scheduled
Flight Status for Tuesday April 14, 2026
This flight is also scheduled for Today (April 13, 2026). See it here
Scheduled
Flight Status for Tuesday April 14, 2026
Airline information
Delta Air Lines
Equipment: Embraer 175 (Enhanced Winglets)
Departure
Seattle (SEA)
April 14, 2026
Seattle-Tacoma International Airport
Scheduled Departure Time:
08:30 pm
Gate:
-
Scheduled Departure Time: 08:30 pm
Arrival
Portland (PDX)
April 14, 2026
Portland International Airport
Scheduled Arrival Time:
09:32 pm
Terminal:
-
Gate:
-
Scheduled Arrival Time: 09:32 pm
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.seattle-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.
Codeshare Flights
This flight is shared with other airlines, this means that these other flights are the same:
- KL7037 - KLM Royal Dutch Airlines
Additional Information
Which is the frequency of flight DL3997?
The flight DL3997 is currently not scheduled at Seattle Airport - SEATAC.
Which is the distance of flight DL3997?
The distance between the two airports is 129 miles.
Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.
The flight DL3997 is currently not scheduled at Seattle Airport - SEATAC.
Which is the distance of flight DL3997?
The distance between the two airports is 129 miles.
Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.
Alternative Flights
The following airlines serves the same route between Seattle and Portland:
Alaska Airlines
- Flight Number: AS170. (On Time performance: 86 - Average Delay: 7 minutes)
- Flight Number: AS2006. (On Time performance: 88 - Average Delay: 7 minutes)
- Flight Number: AS2007. (On Time performance: 84 - Average Delay: 8 minutes)
- Flight Number: AS2047. (On Time performance: 92 - Average Delay: 5 minutes)
- Flight Number: AS2219. (On Time performance: 92 - Average Delay: 7 minutes)
- Flight Number: AS2258. (On Time performance: 89 - Average Delay: 7 minutes)
- Flight Number: AS2264. (On Time performance: 90 - Average Delay: 5 minutes)
- Flight Number: AS3281. (On Time performance: 88 - Average Delay: 6 minutes)
- Flight Number: AS3282. (On Time performance: 96 - Average Delay: 2 minutes)
- Flight Number: AS466. (On Time performance: 81 - Average Delay: 10 minutes)
- Flight Number: AS498. (On Time performance: 76 - Average Delay: 9 minutes)
Delta Air Lines
- Flight Number: DL1278. (On Time performance: 73 - Average Delay: 17 minutes)
- Flight Number: DL1316.
- Flight Number: DL3701. (On Time performance: 90 - Average Delay: 21 minutes)
- Flight Number: DL3802. (On Time performance: 83 - Average Delay: 14 minutes)
- Flight Number: DL3818. (On Time performance: 88 - Average Delay: 5 minutes)
- Flight Number: DL3913. (On Time performance: 89 - Average Delay: 7 minutes)
- Flight Number: DL3918. (On Time performance: 84 - Average Delay: 11 minutes)
- Flight Number: DL3953. (On Time performance: 93 - Average Delay: 8 minutes)
ABX Air
- Flight Number: GB814. (On Time performance: 71 - Average Delay: 23 minutes)
Alaska Airlines
- Flight Number: AS170. (On Time performance: 86 - Average Delay: 7 minutes)
- Flight Number: AS2006. (On Time performance: 88 - Average Delay: 7 minutes)
- Flight Number: AS2007. (On Time performance: 84 - Average Delay: 8 minutes)
- Flight Number: AS2047. (On Time performance: 92 - Average Delay: 5 minutes)
- Flight Number: AS2219. (On Time performance: 92 - Average Delay: 7 minutes)
- Flight Number: AS2258. (On Time performance: 89 - Average Delay: 7 minutes)
- Flight Number: AS2264. (On Time performance: 90 - Average Delay: 5 minutes)
- Flight Number: AS3281. (On Time performance: 88 - Average Delay: 6 minutes)
- Flight Number: AS3282. (On Time performance: 96 - Average Delay: 2 minutes)
- Flight Number: AS466. (On Time performance: 81 - Average Delay: 10 minutes)
- Flight Number: AS498. (On Time performance: 76 - Average Delay: 9 minutes)
Delta Air Lines
- Flight Number: DL1278. (On Time performance: 73 - Average Delay: 17 minutes)
- Flight Number: DL1316.
- Flight Number: DL3701. (On Time performance: 90 - Average Delay: 21 minutes)
- Flight Number: DL3802. (On Time performance: 83 - Average Delay: 14 minutes)
- Flight Number: DL3818. (On Time performance: 88 - Average Delay: 5 minutes)
- Flight Number: DL3913. (On Time performance: 89 - Average Delay: 7 minutes)
- Flight Number: DL3918. (On Time performance: 84 - Average Delay: 11 minutes)
- Flight Number: DL3953. (On Time performance: 93 - Average Delay: 8 minutes)
ABX Air
- Flight Number: GB814. (On Time performance: 71 - Average Delay: 23 minutes)
Punctuality and delays
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from October 11, 2025 to December 18, 2025. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.
Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from April 02, 2025 to December 18, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from October 11, 2025 to December 18, 2025. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.
Last Past Flights DL3997
No flights for DL3997 were scheduled in the past month. The last flight took place on Tuesday, April 14, 2026