Cheap flights Seattle (Tacoma) to Ontario

1 passenger, economy

Cheap flights Seattle to Ontario

Compare prices, duration and stops

Frontier Airlines
F9 2276 🔥 Hot deal
18:54
Seattle, Tacoma (SEA)
Sun, 6 sep
2h 51min
Direct
21:45
Ontario (ONT)
Sun, 6 sep
7 642 ₹
Frontier Airlines
F9 2276 🔥 Hot deal
17:53
Seattle, Tacoma (SEA)
Wed, 9 sep
2h 52min
Direct
20:45
Ontario (ONT)
Wed, 9 sep
5 882 ₹
Frontier Airlines
F9 2276
17:53
Seattle, Tacoma (SEA)
Thu, 10 sep
2h 52min
Direct
20:45
Ontario (ONT)
Thu, 10 sep
7 614 ₹
Frontier Airlines
F9 2276
17:53
Seattle, Tacoma (SEA)
Fri, 11 sep
2h 52min
Direct
20:45
Ontario (ONT)
Fri, 11 sep
14 915 ₹
Frontier Airlines
F9 2276 🔥 Hot deal
17:53
Seattle, Tacoma (SEA)
Sat, 12 sep
2h 52min
Direct
20:45
Ontario (ONT)
Sat, 12 sep
5 896 ₹
Frontier Airlines
F9 2276 🔥 Hot deal
17:53
Seattle, Tacoma (SEA)
Mon, 14 sep
2h 52min
Direct
20:45
Ontario (ONT)
Mon, 14 sep
4 629 ₹
Frontier Airlines
F9 3406
23:27
Seattle, Tacoma (SEA)
Tue, 15 sep
7h 20min
1 stop
06:47
Ontario (ONT)
Wed, 16 sep +1
13 668 ₹
Frontier Airlines
F9 2276 🔥 Hot deal
17:53
Seattle, Tacoma (SEA)
Thu, 24 sep
2h 52min
Direct
20:45
Ontario (ONT)
Thu, 24 sep
5 309 ₹
Frontier Airlines
F9 2276 🔥 Hot deal Best price
18:50
Seattle, Tacoma (SEA)
Mon, 9 nov
2h 48min
Direct
21:38
Ontario (ONT)
Mon, 9 nov
3 152 ₹

Low price calendar

September 2026
Price chart (September 2026)
min: 5309 ₹ · max: 14915 ₹
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Cheap flights Seattle to Ontario

Frontier Airlines
Mon, Tue, Wed, Thu, Fri, Sat, Sun
Price from
₹5 882

Popular destinations from Seattle

All →
SEA
United States → United States
LAS
from
₹1 963
SEA
United States → United States
LAX
from
₹2 102
SEA
United States → United States
DEN
from
₹2 368
SEA
United States → United States
SJC
from
₹3 934
SEA
United States → United States
SFO
from
₹4 214
SEA
United States → United States
OAK
from
₹4 245
SEA
United States → United States
PHX
from
₹4 609
SEA
United States → United States
SAN
from
₹4 912

Popular destinations to Ontario

All →
LAS
Las Vegas — Ontario
United States → United States
ONT
from
₹1 944
SFO
San Francisco — Ontario
United States → United States
ONT
from
₹1 948
HOU
United States → United States
ONT
from
₹3 429
DEN
Denver — Ontario
United States → United States
ONT
from
₹3 682
DFW
United States → United States
ONT
from
₹5 063
SJC
San Jose — Ontario
United States → United States
ONT
from
₹5 076
NYC
United States → United States
ONT
from
₹6 756
ATL
United States → United States
ONT
from
₹7 227

Cheap flights Seattle to Ontario

Interesting facts about the route

Flight time

2h 52min

Distance

1 539 km

Average price

₹6 755

Most frequent flight

F9 2276

Passenger reviews

No reviews for this route yet

Internet abroad

eSIM · United States

All plans

change

3 GB

data

30

days

₹850

Buy

change

2 GB

data

15

days

₹1181

Buy

change

5 GB

data

30

days

₹1323

Buy

change

3 GB

data

30

days

₹1512

Buy

change

5 GB

data

30

days

₹2126

Buy

Frequently Asked Questions

The average ticket price Seattle Ontario is ₹6 755. The cheapest ticket costs ₹7 614, operated by Frontier Airlines, flight 2276, departing Seattle on 10 September at 17:53, arriving Ontario on 10 September at 20:45.
The average flight time is 2 hours 52 minutes. The fastest flight takes 2 hours 52 minutes, flight 2276 operated by Frontier Airlines, departing Seattle on 10 September at 17:53, arriving Ontario on 10 September at 20:45.
Flights on the Seattle - Ontario route are operated by the following airlines: Frontier Airlines.
The distance from Seattle to Ontario is 1539 km.