United Flight UA3478 Deals & Information (2025/2026)

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United Flight 3478 Route Deals From $65

The cheapest prices found with in the last 7 days for return flights were $129 and $65 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Sep 6 - Sun, Sep 7
LGA
LaGuardia
IAD
Washington Dulles Intl.
$129 Roundtrip, found 3 hours ago
$129
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Sep 6 from LaGuardia to Washington Dulles Intl., returning Sun, Sep 7, priced at $129 found 3 hours ago
Thu, Aug 7 - Thu, Aug 14
LGA
LaGuardia
IAD
Washington Dulles Intl.
$131 Roundtrip, found 14 hours ago
$131
Roundtrip
found 14 hours ago
Select United flight, departing Thu, Aug 7 from LaGuardia to Washington Dulles Intl., returning Thu, Aug 14, priced at $131 found 14 hours ago
Thu, Aug 7 - Thu, Aug 14
LGA
LaGuardia
IAD
Washington Dulles Intl.
$137 Roundtrip, found 14 hours ago
$137
Roundtrip
found 14 hours ago
Select United flight, departing Thu, Aug 7 from LaGuardia to Washington Dulles Intl., returning Thu, Aug 14, priced at $137 found 14 hours ago
Sat, Sep 6 - Sun, Sep 7
LGA
LaGuardia
IAD
Washington Dulles Intl.
$138 Roundtrip, found 3 hours ago
$138
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Sep 6 from LaGuardia to Washington Dulles Intl., returning Sun, Sep 7, priced at $138 found 3 hours ago
Sat, Jul 26 - Thu, Jul 31
LGA
LaGuardia
IAD
Washington Dulles Intl.
$141 Roundtrip, found 15 hours ago
$141
Roundtrip
found 15 hours ago
Select United flight, departing Sat, Jul 26 from LaGuardia to Washington Dulles Intl., returning Thu, Jul 31, priced at $141 found 15 hours ago
Thu, Aug 7 - Thu, Aug 14
LGA
LaGuardia
IAD
Washington Dulles Intl.
$142 Roundtrip, found 14 hours ago
$142
Roundtrip
found 14 hours ago
Select United flight, departing Thu, Aug 7 from LaGuardia to Washington Dulles Intl., returning Thu, Aug 14, priced at $142 found 14 hours ago
Sat, Jul 26 - Thu, Jul 31
LGA
LaGuardia
IAD
Washington Dulles Intl.
$150 Roundtrip, found 15 hours ago
$150
Roundtrip
found 15 hours ago
Select United flight, departing Sat, Jul 26 from LaGuardia to Washington Dulles Intl., returning Thu, Jul 31, priced at $150 found 15 hours ago
Fri, Jul 4 - Sun, Jul 6
LGA
LaGuardia
IAD
Washington Dulles Intl.
$150 Roundtrip, found 3 days ago
$150
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jul 4 from LaGuardia to Washington Dulles Intl., returning Sun, Jul 6, priced at $150 found 3 days ago
Fri, Aug 8 - Fri, Aug 15
LGA
LaGuardia
IAD
Washington Dulles Intl.
$160 Roundtrip, found 14 hours ago
$160
Roundtrip
found 14 hours ago
Select United flight, departing Fri, Aug 8 from LaGuardia to Washington Dulles Intl., returning Fri, Aug 15, priced at $160 found 14 hours ago
Sat, Sep 6 - Sun, Sep 7
LGA
LaGuardia
IAD
Washington Dulles Intl.
$161 Roundtrip, found 3 hours ago
$161
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Sep 6 from LaGuardia to Washington Dulles Intl., returning Sun, Sep 7, priced at $161 found 3 hours ago

Frequently asked questions

What route does flight number UA3478 take?
UA3478 is used on multiple routes, but the most common is between Newark, NJ Airport (EWR-Liberty Intl.) and SRQ. If your flight goes direct, you'll arrive in approximately 3 hours and 10 minutes. Multi-stop flights can also use this number, as can flights on other routes.
What terminal does UA3478 fly out of?
Terminal C is where you'll likely jet off from if you're booked on a flight out of Newark, NJ Airport (EWR-Liberty Intl.). Newark, NJ Airport (EWR-Liberty Intl.) to Sarasota, FL Airport (SRQ-Sarasota-Bradenton Intl.) is the most commonly traveled route for flight number UA3478.
What kind of plane is on flight number UA3478?
It's likely you'll be aboard the Embraer 170 if you're flying from Liberty Intl. Airport (EWR) to SRQ Airport, one of a few routes used for flight UA3478.
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 UA3478 flight with Travelocity, please visit our Customer Service Portal.