Delta Flight AA3640 Deals & Information (2025/2026)

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Delta Flight 3640 Route Deals From $80

The cheapest prices found with in the last 7 days for return flights were $192 and $80 for one-way flights to Pearson Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, May 8 - Mon, May 26
LGA
LaGuardia
YYZ
Pearson Intl.
$192 Roundtrip, found 22 hours ago
$192
Roundtrip
found 22 hours ago
Select Delta flight, departing Thu, May 8 from LaGuardia to Pearson Intl., returning Mon, May 26, priced at $192 found 22 hours ago
Tue, Jun 10 - Mon, Jun 16
LGA
LaGuardia
YYZ
Pearson Intl.
$197 Roundtrip, found 5 days ago
$197
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Jun 10 from LaGuardia to Pearson Intl., returning Mon, Jun 16, priced at $197 found 5 days ago
Wed, Apr 23 - Wed, Apr 30
LGA
LaGuardia
YYZ
Pearson Intl.
$203 Roundtrip, found 12 hours ago
$203
Roundtrip
found 12 hours ago
Select Delta flight, departing Wed, Apr 23 from LaGuardia to Pearson Intl., returning Wed, Apr 30, priced at $203 found 12 hours ago
Tue, Apr 8 - Thu, Apr 10
LGA
LaGuardia
YYZ
Pearson Intl.
$207 Roundtrip, found 1 day ago
$207
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Apr 8 from LaGuardia to Pearson Intl., returning Thu, Apr 10, priced at $207 found 1 day ago
Wed, May 21 - Tue, Jun 3
LGA
LaGuardia
YYZ
Pearson Intl.
$210 Roundtrip, found 6 hours ago
$210
Roundtrip
found 6 hours ago
Select Delta flight, departing Wed, May 21 from LaGuardia to Pearson Intl., returning Tue, Jun 3, priced at $210 found 6 hours ago
Tue, Jun 10 - Sat, Jun 21
LGA
LaGuardia
YYZ
Pearson Intl.
$212 Roundtrip, found 2 days ago
$212
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jun 10 from LaGuardia to Pearson Intl., returning Sat, Jun 21, priced at $212 found 2 days ago
Wed, Apr 9 - Wed, Apr 16
LGA
LaGuardia
YYZ
Pearson Intl.
$213 Roundtrip, found 2 hours ago
$213
Roundtrip
found 2 hours ago
Select Delta flight, departing Wed, Apr 9 from LaGuardia to Pearson Intl., returning Wed, Apr 16, priced at $213 found 2 hours ago
Wed, Apr 9 - Wed, Apr 16
LGA
LaGuardia
YYZ
Pearson Intl.
$216 Roundtrip, found 2 hours ago
$216
Roundtrip
found 2 hours ago
Select Delta flight, departing Wed, Apr 9 from LaGuardia to Pearson Intl., returning Wed, Apr 16, priced at $216 found 2 hours ago
Wed, Jun 18 - Wed, Jul 9
LGA
LaGuardia
YYZ
Pearson Intl.
$222 Roundtrip, found 2 days ago
$222
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Jun 18 from LaGuardia to Pearson Intl., returning Wed, Jul 9, priced at $222 found 2 days ago
Wed, May 21 - Tue, Jun 3
LGA
LaGuardia
YYZ
Pearson Intl.
$224 Roundtrip, found 6 hours ago
$224
Roundtrip
found 6 hours ago
Select Delta flight, departing Wed, May 21 from LaGuardia to Pearson Intl., returning Tue, Jun 3, priced at $224 found 6 hours ago

Frequently asked questions

What route does flight number DL3640 take?
DL3640 is used on multiple routes, but the most common is between Salt Lake City Intl. Airport (SLC) and Tucson, AZ Airport (TUS-Tucson Intl.). If you’re lucky enough to score a direct flight, you’ll step off the plane in approximately 1 hour and 57 minutes. Multi-stop flights can also operate under the same number, as can services on other routes.
How often is DL3640 on time?
If you’re taking to the skies with Delta flight number DL3640 between Salt Lake City, UT Airport (SLC-Salt Lake City Intl.) and Tucson Intl. Airport (TUS), it’s a relief knowing that their services depart as scheduled 88% of the time. On the rare occasion that a flight runs behind, it should only be delayed by around 1 hour and 7 minutes. Thanks to this airline’s quality of service, this service has a 2.15-star rating.
What kind of plane is on flight number DL3640?
DL3640 is a flight number that serves several routes. If you’re traveling on the most popular route, Salt Lake City Intl. Airport to Tucson Intl. Airport (TUS), you’re likely to be on the Embraer 175.
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 DL3640 flight with Travelocity, please visit our Customer Service Portal.