Is United Airlines the cheapest airline to fly with from Boston to Baltimore?

With an average price of $287 return, United Airlines is not the cheapest airline to fly from Boston to Baltimore with. Instead, for the lowest price, our data suggests flying with Spirit Airlines, where a return flight costs $127 on average.

What is the cheapest United Airlines flight from Boston to Baltimore?

In the last 3 days, the lowest price for a flight with United Airlines from Boston to Baltimore was $157 for a return flight and $79 for a one-way flight.

Does United Airlines fly direct to Baltimore from Boston?

No, United Airlines does not fly the route directly.

What’s the cheapest day of the week to fly from Boston to Baltimore with United Airlines?

On average, the cheapest day of the week to fly from Boston to Baltimore with United Airlines is Wednesday, when prices are around $75. The most expensive day is generally Friday, where the average price is around $238.

$204 Cheap United Airlines Flights from Boston to Baltimore

Flight Deals

Cheap United Airlines Flight Deals from Boston to Baltimore

Here are some of the best deals found on KAYAK recently from United Airlines for round-trip flights from Boston to Baltimore that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip United Airlines flight deals from Boston to Baltimore

Wed, Jan 21 - Thu, Feb 5

4:15 pm - 2:11 pmBOS-BWI

21h 56m1 stop

10:05 am - 9:52 pmBWI-BOS

11h 47m2 stops

$430United Airlines

Find Deal

Wed, Oct 15 - Sat, Nov 15

12:35 pm - 9:55 amBOS-BWI

21h 20m1 stop

10:55 am - 10:48 pmBWI-BOS

11h 53m2 stops

$437United Airlines

Find Deal

Mon, Dec 15 - Tue, Dec 16

10:40 am - 9:19 pmBOS-BWI

10h 39m1 stop

10:20 am - 10:45 pmBWI-BOS

12h 25m2 stops

$449United Airlines

Find Deal

Fri, Oct 3 - Sat, Oct 4

8:47 pm - 9:55 amBOS-BWI

13h 08m1 stop

5:20 pm - 11:02 amBWI-BOS

17h 42m1 stop

$455United Airlines

Find Deal

Wed, Jan 21 - Thu, Feb 5

6:00 am - 9:41 pmBOS-BWI

15h 41m2 stops

10:05 am - 9:52 pmBWI-BOS

11h 47m2 stops

$456United Airlines

Find Deal

Mon, Feb 9 - Fri, Feb 13

6:17 pm - 2:11 pmBOS-BWI

19h 54m2 stops

6:30 am - 9:46 pmBWI-BOS

15h 16m1 stop

$460United Airlines

Find Deal

Wed, Oct 1 - Wed, Oct 8

6:00 am - 9:22 pmBOS-BWI

15h 22m2 stops

7:05 pm - 9:56 amBWI-BOS

14h 51m1 stop

$463United Airlines

Find Deal

Sat, Nov 1 - Mon, Nov 3

9:40 am - 9:25 pmBOS-BWI

11h 45m1 stop

5:12 pm - 12:28 pmBWI-BOS

19h 16m2 stops

$465United Airlines

Find Deal

Sat, Nov 1 - Mon, Nov 3

6:00 am - 9:25 pmBOS-BWI

15h 25m2 stops

6:15 am - 12:45 amBWI-BOS

18h 30m1 stop

$474United Airlines

Find Deal

Mon, Dec 15 - Tue, Dec 16

6:00 am - 9:19 pmBOS-BWI

15h 19m2 stops

5:18 pm - 12:33 pmBWI-BOS

19h 15m2 stops

$475United Airlines

Find Deal

Useful Info

Low season	January
High season	October
Cheapest flight	$204
Average price round-trip	$221

Best time to beat the crowds with an average 16% drop in price.

Most popular time to fly and prices are also 5% lower on average.

Flight from Boston to Baltimore

(price for this month)

When to Book Flights with United Airlines from Boston to Baltimore

Average price per month

Flight prices as travel date approaches

Is United Airlines the cheapest airline to fly with from Boston to Baltimore?
With an average price of $287 return, United Airlines is not the cheapest airline to fly from Boston to Baltimore with. Instead, for the lowest price, our data suggests flying with Spirit Airlines, where a return flight costs $127 on average.
What is the cheapest United Airlines flight from Boston to Baltimore?
In the last 3 days, the lowest price for a flight with United Airlines from Boston to Baltimore was $157 for a return flight and $79 for a one-way flight.
Does United Airlines fly direct to Baltimore from Boston?
No, United Airlines does not fly the route directly.
What’s the cheapest day of the week to fly from Boston to Baltimore with United Airlines?
On average, the cheapest day of the week to fly from Boston to Baltimore with United Airlines is Wednesday, when prices are around $75. The most expensive day is generally Friday, where the average price is around $238.

7.4

Good8,924 verified ratings

7.3Comfort

7.1Entertainment

6.6Food

7.7Boarding

8.1Crew

Pros +

Cons -

Customer service was very poor. (in 236 reviews)

Show reviews that mention

2.0 Poor

Julian, Sep 2025

DEN-DRO

Terrible. They wouldn't allow me on my flight on the 14th..

2.0 Poor

Verified traveler, Sep 2025

SFO-MEX

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

8.0 Very good

Verified traveler, Sep 2025

PHL-FRA

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

2.0 Poor

Verified traveler, Sep 2025

CMH-ORD

Terrible, will never use UnderPricer or Kayak ever again.

6.0 Okay

Karen Andrea, Sep 2025

IAH-MCO

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

6.0 Okay

Karen Andrea, Sep 2025

SAT-IAH

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

10.0 Wonderful

Thomas, Aug 2025

CMH-IAD

IAD with the archaic people movers is just a place to be avoided.

6.0 Okay

CLEVELAND, Aug 2025

IAH-LFT

Tight

8.0 Very good

CLEVELAND, Aug 2025

TPA-IAH

Professional and courteous in all aspects.

8.0 Very good

Verified traveler, Aug 2025

BKK-NRT

Overall is good, food okay!

Everything you need to know for your flight from Boston to Baltimore

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BOS - BWI

$204 Find Cheap United Airlines Flights from Boston to Baltimore

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Cheap United Airlines Flight Deals from Boston to Baltimore

Recent round-trip United Airlines flight deals from Boston to Baltimore

Recent one-way United Airlines flight deals from Boston to Baltimore

Recent last minute United Airlines flight deals from Boston to Baltimore

Good to know

When to Book Flights with United Airlines from Boston to Baltimore

FAQs for flying to Baltimore with United Airlines

Is United Airlines the cheapest airline to fly with from Boston to Baltimore?

What is the cheapest United Airlines flight from Boston to Baltimore?

Does United Airlines fly direct to Baltimore from Boston?

What’s the cheapest day of the week to fly from Boston to Baltimore with United Airlines?

United Airlines Customer Reviews

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Everything you need to know for your flight from Boston to Baltimore

Other airlines flying from Boston to Baltimore

Flight deals from the most popular airlines with KAYAK users flying the route

Cabin class types available on flights to Baltimore

Cabin classes available on flights to Boston. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Complete your trip to Baltimore with a hotel stay or car rental

Flights to other popular destinations

The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Find deals for your return flight

Top United Airlines flights

The most popular destinations for flights with United Airlines according to clicks from KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.