Find Cheap Flights from Baltimore/Washington to Ontario (BWI - ONT)

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Good to Know

Average Price:
$428
(avg. price over the last 2 weeks)
Good Deal:
$338
or less (round trip)

When to Book Flights from Baltimore/Washington to Ontario

Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $338 or less.
The cheapest flight from Baltimore/Washington to Ontario was found 85 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
Morning departure is around 12% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Baltimore/Washington to Ontario Flights

How long does a flight from Baltimore/Washington to Ontario take?
An average nonstop flight takes 7h 05m, covering a distance of 2279 miles.
Which airlines provide the cheapest flights from Baltimore/Washington to Ontario?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($268), American Airlines ($268) and United ($272).
Do I need a passport to fly between Baltimore/Washington and Ontario?
No.
What’s the cheapest day of the week to fly Baltimore/Washington to Ontario?
For Baltimore/Washington to Ontario, Tuesday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Ontario back to Baltimore/Washington, the best deals are generally found on Wednesday, with Tuesday being the most expensive.

Book cheap flights from Baltimore/Washington to Ontario (round-trip)

Airports
Origin
Baltimore
$268
only
$268
Destination
Ontario
$268
only
$268
Tue, May 8
BWI
ONT
7h 47m
Tue, May 15
ONT
BWI
10h 18m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, May 8
BWI
ONT
7h 47m
Wed, May 16
ONT
BWI
7h 01m
Trip: 9 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LAX
CLT
Mediocre 2.6

I got there safely.

I will never fly American Airlines again. From the moment I checked in with the ticket agent to getting off the plane it was a disaster. The ticket agent was rude, hostile, and dismissive. Employees walked through the line at security forcing everyone to consolidate their belongings to one bag. I had a large wallet in my hand and was told I had to step out of line to put it in my backpack. They only allow you one bag to carry on without paying extra. At the time of boarding they announced that the overhead storage was full so even those that paid extra were still forced to check their bags. The plane was dirty, the service was slow, overall just gross. They don’t have WiFi or in flight entertainment so I paid the $20 to purchase the WiFi. It was worthless. I couldn’t stream anything, even music kept stopping to buffer. I understand it will be slower then on ground WiFi, but it was impossible to watch anything and a complete waste of money.

DEN
ORD
Good 6.4

I'm not sure where the problem was - whether with AA or Royal Jordanian, but my luggage did not make it to Amman with me. In fact, there was a whole group of passengers traveling on American from different US cities, switching to RJ in Chicago, whose luggage did not come on the flight to Amman. My advice: be sure to pack enough for a couple of days in your carryon - and don't accept an offer to check your carryon to its final destination!

LAX
GRU
Excellent 9.3

Past was dry... It was the first time but changed my experience

ORD
MCO
Mediocre 2.6

Horribly made me cancel flight because of 1min after 30 min cut off for boarding pass. Sat at the front desk for 29 minute arguing until my plane left.

DFW
HKG
Okay 4.6

Tiny seats. Very uncomfortable for 17 hours.

Tue, Mar 20
BWI
ONT
8h 17m
Wed, Mar 28
ONT
BWI
9h 14m
Trip: 9 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54764 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
MUC
Excellent 9.3

United was flexible when I had to change my reservation at the last minute. Good service on board.

EWR
TPA
Excellent 8.0

Made up time for delayed departure

So cramped. Sat next to very obese person....spilled onto my seat

LAX
NRT
Good 7.6

Staff was ind and friendly. Generous

Wish there was better food. It was okay.

ORD
FLL
Okay 4.6

Flew First Class from Chicago to Fort Lauderdale. The food was a banana and the seat in front of me was broken and when it went back, it was in my lap. No one seemed to care..

EWR
SYR
Mediocre 2.0

Nothing

Taxied for 45 minutes, got on runway then determined we were low on fuel. Back to gate, refuel, two hour delay

Sat, Apr 28
BWI
ONT
7h 14m
Wed, May 2
ONT
BWI
7h 45m
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
PIT
ATL
Excellent 10.0

I have always known of airlines to offer preboarding to those military members in uniform or on official orders. Delta took it one step further and allows prior service members to board also.

JFK
MCO
Excellent 8.0

Entertainment system great. Individual choices include recent movies. On board staff very nice

We had issues with baggage. Delta was supposed to transfer 4 bags to Disney for Magic Express transportation. Only 3 went. Disney tried hard to fix problem, and even gave us something to ameliorate the situation. Delta took hard line, wasn't helpful and gave nothing. It took 2 days to find bag.

ATL
PIT
Excellent 9.0

Pilots and crew did an amazing job during unstable air coming into Pittsburgh. Great job.

LAX
MCO
Excellent 10.0

I am used to flying Frontier because of cost but recently traveled Delta and boy did I feel completely spoiled! Not only did my other half get our bags for free due to his status with Delta but the amenities they offer and the comfort of the economy seats compared to other airlines is a major difference. As a chronic pain patient, if I can find a Delta flight for a little more, I will be booking with them for sure! Highly recommend them!

SLC
YYZ
Excellent 9.6

Z

Tue, Apr 10
BWI
ONT
7h 27m
Wed, Apr 18
ONT
BWI
6h 34m
Trip: 9 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54764 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ZRH
EWR
Excellent 9.6

more room in the seats

movie choices were meh, but I guess that's a personal preference

LAX
NRT
Good 7.6

Staff was ind and friendly. Generous

Wish there was better food. It was okay.

PWM
IAD
Mediocre 2.0

Nothing was good about this airline with the exception of the baggage crew that finally helped me in Washington Ronald Regan Airport

My flight out of Portland was canceled and it took hours to rebook. I had to fly American Airline to Washington DCA where I roamed the airport at 9pm looking for someone from United. The crew in Portland ME told me the gate person would have a hotel for me.... The baggage crew had to help me.

IAD
NRT
Excellent 10.0

For a little over $2000 you get an economy seat non-stop from DC to Tokyo and back. Meals were good. As economy seats go, it's comfortable. Midweek the flight is about half to two thirds full. So you might be able to stretch out even!

MUC
IAD
Excellent 9.6

Flexibility in changing reservation at the last minute. Excellent service on board, good food.

Wed, Apr 11
BWI
ONT
7h 35m
Wed, Apr 18
ONT
BWI
7h 00m
Trip: 8 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
BWI
CLT
Mediocre 3.0

One of the flight attendants was nice.

AA is now trying to save money (presumably) by doing like Delta: forcing half of us to connect in Charlotte. Unfortunately, the Charlotte airport is not ready to accommodate so many people. The airport looks like it is being renovated, which is fine, but there is no tape/cones to mark off the renovated areas from the walkways. You literally walk through dirt and construction sites. I didn't even think that was legal in the US?! Anyway, maybe it will be worth it once the renovations are complete, especially if AA is going to use it as a hub.

DFW
SAT
Okay 4.0

It was short

Completely full plane. Ridiculously tight seat pitch. Overhead bins full. 45-minute delay for a dead-heading flight crew. Long wait for checked baggage. No beverage service because of turbulence. Flight crew out of position is a management problem, don't make it an inconvenience for a 737 full of paying passengers!

HKG
BKK
Good 6.0

Flight delayed by 35 minutes

LAX
MIA
Mediocre 2.0

Couldn’t sleep because the AC wasnt working. Most miserable flight my life

The AC wasn’t working it was the most miserable flight ever

DEN
ORD
Good 6.4

I'm not sure where the problem was - whether with AA or Royal Jordanian, but my luggage did not make it to Amman with me. In fact, there was a whole group of passengers traveling on American from different US cities, switching to RJ in Chicago, whose luggage did not come on the flight to Amman. My advice: be sure to pack enough for a couple of days in your carryon - and don't accept an offer to check your carryon to its final destination!

Tue, Apr 17
BWI
ONT
7h 55m
Wed, Apr 18
ONT
BWI
6h 34m
Trip: 2 days
Overall 0.0 Poor
Based on 0 reviews
Sat, May 5
BWI
ONT
7h 05m
Wed, May 9
ONT
BWI
7h 45m
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
PIT
Excellent 9.0

Pilots and crew did an amazing job during unstable air coming into Pittsburgh. Great job.

FLL
BOS
Good 6.3

Food and nice crew

No tvs and bad WiFi

JFK
MCO
Excellent 8.0

Entertainment system great. Individual choices include recent movies. On board staff very nice

We had issues with baggage. Delta was supposed to transfer 4 bags to Disney for Magic Express transportation. Only 3 went. Disney tried hard to fix problem, and even gave us something to ameliorate the situation. Delta took hard line, wasn't helpful and gave nothing. It took 2 days to find bag.

MSP
CLT
Excellent 10.0

It was great because I was able to get an aisle seat.

Like it all

FLL
ATL
Excellent 8.0

Departure was right on time and we actually arrived 15 minutes early.

The inflight monitor worked but none of the data (GPS altitude or speed) was working.

Sat, Apr 14
BWI
ONT
7h 35m
Wed, Apr 18
ONT
BWI
7h 00m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LAX
GRU
Excellent 9.3

Past was dry... It was the first time but changed my experience

DFW
SAT
Okay 4.0

It was short

Completely full plane. Ridiculously tight seat pitch. Overhead bins full. 45-minute delay for a dead-heading flight crew. Long wait for checked baggage. No beverage service because of turbulence. Flight crew out of position is a management problem, don't make it an inconvenience for a 737 full of paying passengers!

LAX
MIA
Mediocre 2.0

Couldn’t sleep because the AC wasnt working. Most miserable flight my life

The AC wasn’t working it was the most miserable flight ever

PHL
AMS
Okay 4.6

Fo

DFW
DEN
Excellent 10.0

Easy and quick boarding. Excellwnt service in first class. Comfortable ride.

Nothing. Excellent travel experience.

Wed, Apr 18
BWI
ONT
7h 35m
Sat, Apr 21
ONT
BWI
6h 35m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Wed, May 2
BWI
ONT
8h 31m
Wed, May 9
ONT
BWI
6h 42m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54764 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
MUC
Excellent 9.3

United was flexible when I had to change my reservation at the last minute. Good service on board.

IAD
PHX
Mediocre 2.0

I never flew to Phoenix from Washington. I was held over at DCA for the night so I lost a full day of my vacation! Had to fly to Chicago and then to Phoenix. Was a total pain!!!

LAX
ORD
Good 7.0

Crew was nice

Plane was delayed for 4 hours, should have given us miles or a voucher

MUC
IAD
Excellent 9.6

Flexibility in changing reservation at the last minute. Excellent service on board, good food.

PWM
IAD
Mediocre 2.0

Nothing was good about this airline with the exception of the baggage crew that finally helped me in Washington Ronald Regan Airport

My flight out of Portland was canceled and it took hours to rebook. I had to fly American Airline to Washington DCA where I roamed the airport at 9pm looking for someone from United. The crew in Portland ME told me the gate person would have a hotel for me.... The baggage crew had to help me.

Wed, Mar 14
BWI
ONT
9h 23m
Wed, Mar 21
ONT
BWI
8h 31m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
LAX
MSP
Excellent 9.0

Had to sit in the middle row and I wasn’t given the option to get an aisle sit during check in.

No flexibility for seats

JFK
MCO
Excellent 8.0

Entertainment system great. Individual choices include recent movies. On board staff very nice

We had issues with baggage. Delta was supposed to transfer 4 bags to Disney for Magic Express transportation. Only 3 went. Disney tried hard to fix problem, and even gave us something to ameliorate the situation. Delta took hard line, wasn't helpful and gave nothing. It took 2 days to find bag.

SLC
YYZ
Excellent 9.6

Z

SLC
YYZ
Excellent 8.0

was a difficult transition from delta to west jet in Toronto and we almost missed the flight

MSP
CLT
Excellent 10.0

It was great because I was able to get an aisle seat.

Like it all

Tue, Apr 17
BWI
ONT
7h 35m
Wed, Apr 18
ONT
BWI
7h 00m
Trip: 2 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
ORD
MCO
Mediocre 2.6

Horribly made me cancel flight because of 1min after 30 min cut off for boarding pass. Sat at the front desk for 29 minute arguing until my plane left.

BWI
CLT
Mediocre 3.0

One of the flight attendants was nice.

AA is now trying to save money (presumably) by doing like Delta: forcing half of us to connect in Charlotte. Unfortunately, the Charlotte airport is not ready to accommodate so many people. The airport looks like it is being renovated, which is fine, but there is no tape/cones to mark off the renovated areas from the walkways. You literally walk through dirt and construction sites. I didn't even think that was legal in the US?! Anyway, maybe it will be worth it once the renovations are complete, especially if AA is going to use it as a hub.

JFK
MAD
Okay 4.0

Very old plane. No personal entertainment. Very basic service.

LAX
MIA
Mediocre 2.0

Couldn’t sleep because the AC wasnt working. Most miserable flight my life

The AC wasn’t working it was the most miserable flight ever

PHL
AMS
Okay 4.6

Fo

Sat, Apr 28
BWI
ONT
7h 27m
Wed, May 9
ONT
BWI
7h 01m
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Mar 19
BWI
ONT
8h 17m
Wed, Mar 28
ONT
BWI
9h 14m
Trip: 10 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54764 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
LAX
ORD
Good 7.0

Crew was nice

Plane was delayed for 4 hours, should have given us miles or a voucher

EWR
SYR
Mediocre 2.0

Nothing

Taxied for 45 minutes, got on runway then determined we were low on fuel. Back to gate, refuel, two hour delay

IAD
NRT
Excellent 10.0

For a little over $2000 you get an economy seat non-stop from DC to Tokyo and back. Meals were good. As economy seats go, it's comfortable. Midweek the flight is about half to two thirds full. So you might be able to stretch out even!

IAD
MUC
Excellent 9.3

United was flexible when I had to change my reservation at the last minute. Good service on board.

EWR
TPA
Excellent 8.0

Made up time for delayed departure

So cramped. Sat next to very obese person....spilled onto my seat

Wed, Mar 21
BWI
ONT
9h 23m
Tue, Mar 27
ONT
BWI
11h 27m
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
SLC
YYZ
Excellent 9.6

Z

JFK
CDG
Excellent 10.0

The food and the service

MSP
CLT
Excellent 10.0

It was great because I was able to get an aisle seat.

Like it all

LAX
MCO
Excellent 10.0

I am used to flying Frontier because of cost but recently traveled Delta and boy did I feel completely spoiled! Not only did my other half get our bags for free due to his status with Delta but the amenities they offer and the comfort of the economy seats compared to other airlines is a major difference. As a chronic pain patient, if I can find a Delta flight for a little more, I will be booking with them for sure! Highly recommend them!

LAX
MSP
Excellent 9.0

Had to sit in the middle row and I wasn’t given the option to get an aisle sit during check in.

No flexibility for seats

Sat, Apr 28
BWI
ONT
7h 35m
Wed, May 9
ONT
BWI
7h 01m
Trip: 12 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LAX
MIA
Mediocre 2.0

Couldn’t sleep because the AC wasnt working. Most miserable flight my life

The AC wasn’t working it was the most miserable flight ever

DFW
SAT
Okay 4.0

It was short

Completely full plane. Ridiculously tight seat pitch. Overhead bins full. 45-minute delay for a dead-heading flight crew. Long wait for checked baggage. No beverage service because of turbulence. Flight crew out of position is a management problem, don't make it an inconvenience for a 737 full of paying passengers!

HKG
BKK
Good 6.0

Flight delayed by 35 minutes

BWI
CLT
Mediocre 3.0

One of the flight attendants was nice.

AA is now trying to save money (presumably) by doing like Delta: forcing half of us to connect in Charlotte. Unfortunately, the Charlotte airport is not ready to accommodate so many people. The airport looks like it is being renovated, which is fine, but there is no tape/cones to mark off the renovated areas from the walkways. You literally walk through dirt and construction sites. I didn't even think that was legal in the US?! Anyway, maybe it will be worth it once the renovations are complete, especially if AA is going to use it as a hub.

DFW
DEN
Excellent 10.0

Easy and quick boarding. Excellwnt service in first class. Comfortable ride.

Nothing. Excellent travel experience.

Tue, May 1
BWI
ONT
7h 55m
Wed, May 9
ONT
BWI
6h 42m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 13
BWI
ONT
8h 17m
Wed, Mar 14
ONT
BWI
9h 14m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54764 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
PHX
Mediocre 2.0

I never flew to Phoenix from Washington. I was held over at DCA for the night so I lost a full day of my vacation! Had to fly to Chicago and then to Phoenix. Was a total pain!!!

MUC
IAD
Excellent 9.6

Flexibility in changing reservation at the last minute. Excellent service on board, good food.

ZRH
EWR
Excellent 9.6

more room in the seats

movie choices were meh, but I guess that's a personal preference

IAD
MUC
Excellent 9.3

United was flexible when I had to change my reservation at the last minute. Good service on board.

DSM
DEN
Excellent 8.0

I had to check my carry on from DEN to DSM because flight was full which I was told I could pickup at gate.. at the gate the TSA agent was very rude to me as I was confused as where my bag was, which I had to to baggage claim.

Tue, Mar 20
BWI
ONT
14h 26m
Tue, Mar 27
ONT
BWI
11h 27m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
SLC
YYZ
Excellent 9.6

Z

MSP
CZM
Excellent 10.0

Everything went smoothly.

All was good.

SLC
YYZ
Excellent 8.0

was a difficult transition from delta to west jet in Toronto and we almost missed the flight

LAX
MSP
Excellent 9.0

Had to sit in the middle row and I wasn’t given the option to get an aisle sit during check in.

No flexibility for seats

FLL
BOS
Good 6.3

Food and nice crew

No tvs and bad WiFi

Show more results

Baltimore/Washington to Ontario Flight Information

Flights Arrive in Ontario
Flights Depart from Baltimore/Washington
Flight Price $268
Distance 2279 miles
Airlines American Airlines, United, Delta
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

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Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.