United Flight 677 Deals & Information (2026/2027)

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United Flight 677 Route Deals From $123

The cheapest prices found with in the last 7 days for return flights were $270 and $123 for one-way flights to Calgary Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Sep 9 - Wed, Sep 16
IAD
Washington Dulles Intl.
YYC
Calgary Intl.
$270 Roundtrip, found 4 hours ago
$270
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Sep 9 from Washington Dulles Intl. to Calgary Intl., returning Wed, Sep 16, priced at $270 found 4 hours ago
Wed, Sep 9 - Wed, Sep 16
IAD
Washington Dulles Intl.
YYC
Calgary Intl.
$280 Roundtrip, found 4 hours ago
$280
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Sep 9 from Washington Dulles Intl. to Calgary Intl., returning Wed, Sep 16, priced at $280 found 4 hours ago
Sat, Sep 12 - Wed, Sep 16
IAD
Washington Dulles Intl.
YYC
Calgary Intl.
$283 Roundtrip, found 19 hours ago
$283
Roundtrip
found 19 hours ago
Select United flight, departing Sat, Sep 12 from Washington Dulles Intl. to Calgary Intl., returning Wed, Sep 16, priced at $283 found 19 hours ago
Wed, Sep 9 - Thu, Sep 10
IAD
Washington Dulles Intl.
YYC
Calgary Intl.
$286 Roundtrip, found 2 days ago
$286
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 9 from Washington Dulles Intl. to Calgary Intl., returning Thu, Sep 10, priced at $286 found 2 days ago
Sat, Sep 12 - Wed, Sep 16
IAD
Washington Dulles Intl.
YYC
Calgary Intl.
$296 Roundtrip, found 19 hours ago
$296
Roundtrip
found 19 hours ago
Select United flight, departing Sat, Sep 12 from Washington Dulles Intl. to Calgary Intl., returning Wed, Sep 16, priced at $296 found 19 hours ago
Sat, Sep 12 - Wed, Sep 16
IAD
Washington Dulles Intl.
YYC
Calgary Intl.
$299 Roundtrip, found 19 hours ago
$299
Roundtrip
found 19 hours ago
Select United flight, departing Sat, Sep 12 from Washington Dulles Intl. to Calgary Intl., returning Wed, Sep 16, priced at $299 found 19 hours ago
Wed, Sep 9 - Wed, Sep 16
IAD
Washington Dulles Intl.
YYC
Calgary Intl.
$307 Roundtrip, found 4 hours ago
$307
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Sep 9 from Washington Dulles Intl. to Calgary Intl., returning Wed, Sep 16, priced at $307 found 4 hours ago
Sat, Sep 12 - Wed, Sep 16
IAD
Washington Dulles Intl.
YYC
Calgary Intl.
$310 Roundtrip, found 19 hours ago
$310
Roundtrip
found 19 hours ago
Select United flight, departing Sat, Sep 12 from Washington Dulles Intl. to Calgary Intl., returning Wed, Sep 16, priced at $310 found 19 hours ago
Wed, Sep 9 - Wed, Sep 16
IAD
Washington Dulles Intl.
YYC
Calgary Intl.
$312 Roundtrip, found 4 hours ago
$312
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Sep 9 from Washington Dulles Intl. to Calgary Intl., returning Wed, Sep 16, priced at $312 found 4 hours ago
Fri, Sep 11 - Fri, Sep 18
IAD
Washington Dulles Intl.
YYC
Calgary Intl.
$317 Roundtrip, found 13 hours ago
$317
Roundtrip
found 13 hours ago
Select United flight, departing Fri, Sep 11 from Washington Dulles Intl. to Calgary Intl., returning Fri, Sep 18, priced at $317 found 13 hours ago
Wed, Sep 9 - Thu, Sep 10
IAD
Washington Dulles Intl.
YYC
Calgary Intl.
$322 Roundtrip, found 2 days ago
$322
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 9 from Washington Dulles Intl. to Calgary Intl., returning Thu, Sep 10, priced at $322 found 2 days ago
Fri, Sep 11 - Fri, Sep 18
IAD
Washington Dulles Intl.
YYC
Calgary Intl.
$323 Roundtrip, found 13 hours ago
$323
Roundtrip
found 13 hours ago
Select United flight, departing Fri, Sep 11 from Washington Dulles Intl. to Calgary Intl., returning Fri, Sep 18, priced at $323 found 13 hours ago

Frequently asked questions

What route does flight number UA677 take?
UA677 is used on a number of routes. Typically, UA677 flies directly from Fort Lauderdale, FL Airport (FLL-Fort Lauderdale - Hollywood Intl.) to Denver, CO Airport (DEN-Denver Intl.). If this is your route, you'll be traveling for approximately 4 hours and 26 minutes.
What terminal does UA677 fly out of?
Terminal 1 is the terminal you'll likely depart from if you're booked on a flight out of Fort Lauderdale, FL Airport (FLL-Fort Lauderdale - Hollywood Intl.). FLL to DIA airport is the most popular route for flight number UA677.
What kind of plane is on flight number UA677?
There's a strong chance you'll be aboard the Boeing 737-900 if you're flying from Fort Lauderdale - Hollywood Intl. Airport to DIA airport, a common route for flight UA677.
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 UA677 flight with Travelocity, please visit our Customer Service Portal.