United Flight UA1666 Deals & Information (2024/2025)

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United Flight 1666 Route Deals From $84

The cheapest prices found with in the last 7 days for return flights were $173 and $84 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, May 22 - Wed, May 29
MIA
Miami Intl.
IAD
Washington Dulles Intl.
$173 Roundtrip, found 1 day ago
$173
Roundtrip
found 1 day ago
Select United flight, departing Wed, May 22 from Miami Intl. to Washington Dulles Intl., returning Wed, May 29, priced at $173 found 1 day ago
Thu, Dec 5 - Tue, Dec 10
MIA
Miami Intl.
IAD
Washington Dulles Intl.
$177 Roundtrip, found 19 hours ago
$177
Roundtrip
found 19 hours ago
Select United flight, departing Thu, Dec 5 from Miami Intl. to Washington Dulles Intl., returning Tue, Dec 10, priced at $177 found 19 hours ago
Thu, Dec 5 - Tue, Dec 10
MIA
Miami Intl.
IAD
Washington Dulles Intl.
$186 Roundtrip, found 19 hours ago
$186
Roundtrip
found 19 hours ago
Select United flight, departing Thu, Dec 5 from Miami Intl. to Washington Dulles Intl., returning Tue, Dec 10, priced at $186 found 19 hours ago
Tue, Jun 11 - Wed, Jul 31
MIA
Miami Intl.
IAD
Washington Dulles Intl.
$193 Roundtrip, found 1 day ago
$193
Roundtrip
found 1 day ago
Select United flight, departing Tue, Jun 11 from Miami Intl. to Washington Dulles Intl., returning Wed, Jul 31, priced at $193 found 1 day ago
Wed, May 22 - Wed, May 29
MIA
Miami Intl.
IAD
Washington Dulles Intl.
$205 Roundtrip, found 1 day ago
$205
Roundtrip
found 1 day ago
Select United flight, departing Wed, May 22 from Miami Intl. to Washington Dulles Intl., returning Wed, May 29, priced at $205 found 1 day ago
Thu, Dec 5 - Tue, Dec 10
MIA
Miami Intl.
IAD
Washington Dulles Intl.
$210 Roundtrip, found 19 hours ago
$210
Roundtrip
found 19 hours ago
Select United flight, departing Thu, Dec 5 from Miami Intl. to Washington Dulles Intl., returning Tue, Dec 10, priced at $210 found 19 hours ago
Tue, Aug 6 - Tue, Sep 3
MIA
Miami Intl.
IAD
Washington Dulles Intl.
$213 Roundtrip, found 6 days ago
$213
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 6 from Miami Intl. to Washington Dulles Intl., returning Tue, Sep 3, priced at $213 found 6 days ago
Thu, May 23 - Thu, May 30
MIA
Miami Intl.
IAD
Washington Dulles Intl.
$213 Roundtrip, found 1 day ago
$213
Roundtrip
found 1 day ago
Select United flight, departing Thu, May 23 from Miami Intl. to Washington Dulles Intl., returning Thu, May 30, priced at $213 found 1 day ago
Mon, May 20 - Tue, May 21
MIA
Miami Intl.
IAD
Washington Dulles Intl.
$215 Roundtrip, found 5 days ago
$215
Roundtrip
found 5 days ago
Select United flight, departing Mon, May 20 from Miami Intl. to Washington Dulles Intl., returning Tue, May 21, priced at $215 found 5 days ago
Thu, Dec 5 - Tue, Dec 10
MIA
Miami Intl.
IAD
Washington Dulles Intl.
$219 Roundtrip, found 19 hours ago
$219
Roundtrip
found 19 hours ago
Select United flight, departing Thu, Dec 5 from Miami Intl. to Washington Dulles Intl., returning Tue, Dec 10, priced at $219 found 19 hours ago

More United Flight For This Route

CarrierFlightDepart MIAArrive IADSat
5/11		Sun
5/12		Mon
5/13		Tue
5/14		Wed
5/15		Thu
5/16		Fri
5/17		Stops
UA166608:45 am11:23 amCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
UA236901:25 pm04:06 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops

Frequently asked questions

What route does flight number UA1666 take?
You’ll be arriving into San Francisco Intl. Airport (SFO) from LAX if you’ve booked a ticket on flight number UA1666. You’ll be airborne for 1 hour and 19 minutes during this trip. It’s also worthwhile noting that the service conveniently travels direct.
What terminal does UA1666 fly out of?
UA1666 runs between LAX and SFO, and passengers with a seat on this flight usually board the plane from Terminal 7.
What kind of plane is on flight number UA1666?
The route for UA1666 is generally Los Angeles Intl. Airport (LAX) to San Francisco Airport, and the Boeing 737-800 is the type of plane you’ll probably be flying on.
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 UA1666 flight with Travelocity, please visit our Customer Service Portal.