United Flight 3637 Deals & Information (2025/2026)

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United Flight 3637 Route Deals From $209

The cheapest prices found with in the last 7 days for return flights were $271 and $209 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jan 9 - Fri, Feb 27
YYZ
Pearson Intl.
IAD
Washington Dulles Intl.
$271 Roundtrip, found 5 days ago
$271
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jan 9 from Pearson Intl. to Washington Dulles Intl., returning Fri, Feb 27, priced at $271 found 5 days ago
Fri, Jan 9 - Fri, Feb 27
YYZ
Pearson Intl.
IAD
Washington Dulles Intl.
$276 Roundtrip, found 5 days ago
$276
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jan 9 from Pearson Intl. to Washington Dulles Intl., returning Fri, Feb 27, priced at $276 found 5 days ago
Mon, Jan 12 - Fri, Jan 16
YYZ
Pearson Intl.
IAD
Washington Dulles Intl.
$279 Roundtrip, found 6 days ago
$279
Roundtrip
found 6 days ago
Select United flight, departing Mon, Jan 12 from Pearson Intl. to Washington Dulles Intl., returning Fri, Jan 16, priced at $279 found 6 days ago
Fri, Jan 9 - Fri, Feb 27
YYZ
Pearson Intl.
IAD
Washington Dulles Intl.
$280 Roundtrip, found 5 days ago
$280
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jan 9 from Pearson Intl. to Washington Dulles Intl., returning Fri, Feb 27, priced at $280 found 5 days ago

Frequently asked questions

What route does flight number UA3637 take?
UA3637 serves multiple routes, but the most common is between Chicago, IL Airport (ORD-O'Hare Intl.) and SAV. If your flight is direct, you'll disembark the plane in around 2 hours and 9 minutes. Multi-stop flights can also operate under the same number, as can flights on other routes.
What terminal does UA3637 fly out of?
You'll likely board the aircraft from Terminal 2 if you're starting your journey at O'Hare Intl. Airport (ORD). UA3637 serves a number of routes, but the direct flight between Chicago, IL Airport (ORD-O'Hare Intl.) and SAV is the most frequently traveled.
What kind of plane is on flight number UA3637?
UA3637 is a flight number that's used on multiple routes. If you've booked a ticket on the most popular route, O'Hare Airport to Savannah - Hilton Head Intl. Airport (SAV), you're likely to be boarding an 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 UA3637 flight with Travelocity, please visit our Customer Service Portal.