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Flight Deals from Ontario International Airport to Athens from $468

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Stops

Up to 2 stops
$530

Airlines

American Airlines
$849
British Airways
$530
Finnair
$711

Cabin Class

Economy
$530

Departure Airports

Ontario International Airport
$530

Arrival Airports

Eleftherios Venizelos International Airport
$530

Layover Airports

Chicago O Hare Airport
$635
Dallas Fort Worth International Airport
$530
London Heathrow Airport
$530
Phoenix Sky Harbor International Airport
$665

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On average save $240 per traveler
British Airways Logo
British Airways

11/18/25

11:00am
ONT
31h 55m
DFW
LHR

11/19/25

6:55pm
ATH
British Airways Logo
British Airways

12/03/25

2:50pm
ATH
24h 30m
LHR

12/04/25

3:20pm
ONT
$530
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

11/19/25

3:05pm
ONT
33h 55m
DFW
LHR

11/21/25

1:00am
ATH
British Airways Logo
British Airways

11/27/25

7:30am
ATH
10h 55m
LHR

11/27/25

6:25pm
ONT
$530
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

11/17/25

3:05pm
ONT
27h 50m
DFW
LHR

11/18/25

6:55pm
ATH
British Airways Logo
British Airways

11/24/25

7:35pm
ATH
17h 55m
LHR

11/25/25

1:30pm
ONT
$530
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

11/28/25

12:53pm
ONT
29h 27m
DFW
LHR

11/29/25

6:20pm
ATH
British Airways Logo
British Airways

12/09/25

7:45am
ATH
7h 35m
LHR

12/09/25

3:20pm
ONT
$580
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

11/18/25

3:05pm
ONT
27h 50m
DFW
LHR

11/19/25

6:55pm
ATH
British Airways Logo
British Airways

12/03/25

7:55pm
ATH
23h 22m
LHR
ORD

12/04/25

7:17pm
ONT
$635
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

12/06/25

3:05pm
ONT
34h 5m
DFW
LHR

12/08/25

1:10am
ATH
British Airways Logo
British Airways

12/13/25

7:15pm
ATH
20h 35m
LHR

12/14/25

3:50pm
ONT
$645
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

12/01/25

5:01pm
ONT
43h 29m
PHX
LHR

12/03/25

12:30pm
ATH
British Airways Logo
British Airways

12/08/25

7:35pm
ATH
26h 2m
LHR
PHX

12/09/25

9:37pm
ONT
$665
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

11/27/25

12:53pm
ONT
36h 22m
DFW
LHR

11/29/25

1:15am
ATH
British Airways Logo
British Airways

12/04/25

7:50pm
ATH
23h 27m
LHR
ORD

12/05/25

7:17pm
ONT
$686
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

11/26/25

12:53pm
ONT
29h 42m
DFW
LHR

11/27/25

6:35pm
ATH
British Airways Logo
British Airways

12/02/25

7:55pm
ATH
23h 22m
LHR
ORD

12/03/25

7:17pm
ONT
$696
Free cancellation within 83 hours of booking
Finnair Logo
Finnair

11/17/25

3:05pm
ONT
27h 50m
DFW
LHR

11/18/25

6:55pm
ATH
Finnair Logo
Finnair

11/24/25

4:45pm
ATH
22h 35m
LHR

11/25/25

3:20pm
ONT
$711
Free cancellation within 83 hours of booking
Finnair Logo
Finnair

11/19/25

12:53pm
ONT
29h 42m
DFW
LHR

11/20/25

6:35pm
ATH
Finnair Logo
Finnair

11/27/25

7:50pm
ATH
19h 30m
LHR

11/28/25

3:20pm
ONT
$768
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

12/09/25

3:05pm
ONT
34h 10m
DFW
LHR

12/11/25

1:15am
ATH
British Airways Logo
British Airways

12/16/25

2:10pm
ATH
29h 7m
LHR
ORD

12/17/25

7:17pm
ONT
$796
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

12/15/25

10:57am
ONT
36h 13m
DFW
LHR

12/16/25

11:10pm
ATH
British Airways Logo
British Airways

12/22/25

4:45pm
ATH
28h 22m
LHR
ORD

12/23/25

9:07pm
ONT
$806
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

11/19/25

3:05pm
ONT
33h 55m
DFW
LHR

11/21/25

1:00am
ATH
British Airways Logo
British Airways

11/27/25

4:10pm
ATH
27h 5m
LHR
ORD

11/28/25

7:15pm
ONT
$821
Free cancellation within 83 hours of booking
American Airlines Logo
American Airlines

11/25/25

8:46am
ONT
28h 59m
DFW
LHR

11/26/25

1:45pm
ATH
American Airlines Logo
American Airlines

12/03/25

7:55pm
ATH
19h 25m
LHR

12/04/25

3:20pm
ONT
$849
Free cancellation within 83 hours of booking
British Airways Logo
British Airways

11/23/25

12:53pm
ONT
36h 22m
DFW
LHR

11/25/25

1:15am
ATH
British Airways Logo
British Airways

12/17/25

2:50pm
ATH
30h 17m
LHR
ORD

12/18/25

9:07pm
ONT
$906
Free cancellation within 83 hours of booking
American Airlines Logo
American Airlines

12/01/25

11:00am
ONT
31h 55m
DFW
LHR

12/02/25

6:55pm
ATH
American Airlines Logo
American Airlines

12/08/25

7:35pm
ATH
19h 45m
LHR

12/09/25

3:20pm
ONT
$934
Free cancellation within 83 hours of booking
American Airlines Logo
American Airlines

11/22/25

8:05pm
ONT
53h 10m
PHX
LHR

11/25/25

1:15am
ATH
American Airlines Logo
American Airlines

11/29/25

7:15pm
ATH
23h 10m
LHR

11/30/25

6:25pm
ONT
$1013
Free cancellation within 83 hours of booking
Finnair Logo
Finnair

11/22/25

3:05pm
ONT
34h 5m
DFW
LHR

11/24/25

1:10am
ATH
Finnair Logo
Finnair

11/29/25

7:15pm
ATH
20h 5m
LHR

11/30/25

3:20pm
ONT
$1080
Free cancellation within 83 hours of booking

Top Deals on flights from Ontario International Airport to Athens

Los Angeles, US (LAX) - Athens, GR (ATH)

Delta Air Lines Logo
Delta Air Lines

May 12

2:55pm
ONT
41h 25m
SEA
JFK

May 14

8:20am
ATH

as low as

$468

Los Angeles, US (LAX) - Athens, GR (ATH)

Virgin Atlantic Logo
Virgin Atlantic

Apr 21

7:00am
ONT
27h 55m
ATL

Apr 22

10:55am
ATH

as low as

$468

Los Angeles, US (LAX) - Athens, GR (ATH)

Delta Air Lines Logo
Delta Air Lines

Apr 26

10:15pm
ONT
36h 40m
ATL

Apr 28

10:55am
ATH

as low as

$468

Los Angeles, US (LAX) - Athens, GR (ATH)

Air Canada Logo
Air Canada

May 3

3:10pm
ONT
42h 55m
SFO
YUL

May 5

10:05am
ATH

as low as

$480

Los Angeles, US (LAX) - Athens, GR (ATH)

British Airways Logo
British Airways

May 6

2:44pm
ONT
35h 26m
DFW
LHR

May 8

2:10am
ATH

as low as

$486

Los Angeles, US (LAX) - Athens, GR (ATH)

United Airlines Logo
United Airlines

May 14

1:45pm
ONT
33h 15m
SFO
MUC

May 15

11:00pm
ATH

as low as

$489

Los Angeles, US (LAX) - Athens, GR (ATH)

KLM Logo
KLM

Apr 23

7:00am
ONT
27h 55m
ATL

Apr 24

10:55am
ATH

as low as

$494

Los Angeles, US (LAX) - Athens, GR (ATH)

United Airlines Logo
United Airlines

May 19

5:05am
ONT
30h 5m
DEN
YYZ

May 20

11:10am
ATH

as low as

$524

Los Angeles, US (LAX) - Athens, GR (ATH)

American Airlines Logo
American Airlines

May 4

7:25pm
ONT
38h 35m
PHX
JFK

May 6

10:00am
ATH

as low as

$568

Los Angeles, US (LAX) - Athens, GR (ATH)

IBERIA Logo
IBERIA

Apr 21

10:54am
ONT
30h 41m
DFW
LHR

Apr 22

5:35pm
ATH

as low as

$709

Los Angeles, US (LAX) - Athens, GR (ATH)

Lufthansa Logo
Lufthansa

Apr 21

1:35pm
ONT
44h 20m
AUS
IAD

Apr 23

9:55am
ATH

as low as

$778

Los Angeles, US (LAX) - Athens, GR (ATH)

IBERIA Logo
IBERIA

May 9

10:51am
ONT
28h 19m
DFW
MAD

May 10

3:10pm
ATH

as low as

$1212

Flights to Athens

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Flights From Athens To Ontario International Airport

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