Cheapest Istanbul to Kastamonu round trip flight dates

1 - Choose the outbound flight

November

2,013 ₺
December

2,013 ₺
January

1,813 ₺
February

1,813 ₺
March

1,813 ₺
April

3,013 ₺

MON
TUE
WED
THU
FRI
SAT
SUN
1
4,113
₺
2
3
4
2,013
₺
5
6
2,013
₺
7
8
2,013
₺
9
10
11
2,013
₺
12
13
2,713
₺
14
15
2,363
₺
16
17
18
2,713
₺
19
20
2,713
₺
21
22
2,713
₺
23
24
25
2,013
₺
26
27
2,013
₺
28
29
2,013
₺
30

Cheap prices

2 - Choose the return flight

November

2,000 ₺
December

2,000 ₺
January

1,800 ₺
February

1,800 ₺
March

1,800 ₺
April

3,000 ₺

MON
TUE
WED
THU
FRI
SAT
SUN
1
6,990
₺
2
3
4
2,000
₺
5
6
2,000
₺
7
8
2,350
₺
9
10
11
2,000
₺
12
13
2,350
₺
14
15
2,003
₺
16
17
18
2,700
₺
19
20
2,700
₺
21
22
3,700
₺
23
24
25
2,000
₺
26
27
2,000
₺
28
29
2,000
₺
30

Cheap prices

🏨 Accommodation

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🚗 Car rental

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Kastamonu travel guide

Kastamonu combines historic city views with a slower pace. The castle is a worthwhile focus for scenery lovers, while nature trips beyond the centre need separate planning.

🏰 Allow time for the view from the castle and account for the steps on the way up.

🚶 Break up your central walk with pauses and wear comfortable shoes for the climb.

🌲 If you want to head towards Ilgaz, treat it as a separate nature excursion.

About Istanbul → Kastamonu round trip flights

Use this page to find the cheapest flight dates for round trip flights from Istanbul to Kastamonu.

Price summary

The price calendar covers 6 months for round trip flights from Istanbul to Kastamonu.

Lowest months: January 2027 (TRY 1,813), February 2027 (TRY 1,813) and March 2027 (TRY 1,813).

Monthly lowest prices: November 2026: TRY 2,013, December 2026: TRY 2,013, January 2027: TRY 1,813, February 2027: TRY 1,813, March 2027: TRY 1,813, April 2027: TRY 3,013.

In November 2026, the lowest date starts from TRY 2,013.

Daily prices are listed for 13 dates.